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SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 
20549

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FORM 10-Q

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|(Mark One)                                                    
|--------------------------------------------------------------
|                                                              
|x                                                             
|                                                              
|For the quarterly period ended March 31, 2003                 
|                                                              
|OR                                                            
|                                                              
|o                                                             
|                                                              
|Commission file number 0-19567                                
|                                                              
|CARDIAC SCIENCE, INC.                                         
|                                                              
|(Exact name of Registrant as specified in its charter)        
|                                                              
|DELAWARE                                                      
|(State or other jurisdiction of incorporation or organization)
|                                                              
|1900 Main Street, Suite 700, Irvine, California, 92614        
|                                                              
|(Address of principal executive offices)                      
|                                                              

Registrants telephone number, including area code:  (949) 797-3800

Check whether the issuer (1) filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the past 12 months (or for such shorter period
that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

|Yes x | No o
|----- | ----

Indicate by check mark if the registrant is an accelerated filer (as defined in Exchange Act Rule 12b-2).

|Yes x | No o
|----- | ----

The number of shares of the Common Stock of the registrant outstanding as of May 14, 2003 was 66,997,014.

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CARDIAC SCIENCE, INC. INDEX TO FORM 10-Q

|                                                                              |                                                                                                            | Page No.
|----------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- | --------
|                                                                              |                                                                                                            |         
|                                                                              |                                                                                                           
|                                                                              | PART I.  FINANCIAL INFORMATION                                                                             |         
|                                                                              |                                                                                                            |         
|Item 1.                                                                       | Unaudited Financial Statements:                                                                            |         
|                                                                              |                                                                                                            |         
|                                                                              | Consolidated Condensed Balance Sheets as of March 31, 2003 and December 31, 2002                           | 3       
|                                                                              |                                                                                                            |         
|                                                                              | Consolidated Condensed Statements of Operations for the three months ended March 31, 2003 and 2002         | 4       
|                                                                              |                                                                                                            |         
|                                                                              | Consolidated Condensed Statements of Comprehensive Loss for the three months ended March 31, 2003 and 2002 | 5       
|                                                                              |                                                                                                            |         
|                                                                              | Consolidated Condensed Statements of Cash Flows for the three months ended March 31, 2003 and 2002         | 6       
|                                                                              |                                                                                                            |         
|                                                                              | Notes to Consolidated Condensed Financial Statements                                                       | 7       
|                                                                              |                                                                                                            |         
|Item 2.                                                                       | Managements Discussion and Analysis of Financial Condition and Results of Operations                      | 15      
|                                                                              |                                                                                                            |         
|Item 3.                                                                       | Quantitative and Qualitative Disclosures About Market Risk                                                 | 21      
|                                                                              |                                                                                                            |         
|Item 4.                                                                       | Controls and Procedures                                                                                    | 22      
|                                                                              |                                                                                                            |         
|                                                                              | PART II.  OTHER INFORMATION                                                                                |         
|                                                                              |                                                                                                            |         
|Item 1.                                                                       | Legal Proceedings                                                                                          | 23      
|                                                                              |                                                                                                            |         
|Item 6.                                                                       | Exhibits and Reports on Form 8-K                                                                           | 23      
|                                                                              |                                                                                                            |         
|Signatures                                                                    | 24                                                                                                        
|                                                                              |                                                                                                            |         
|Certifications of Principal Executive Officer and Principal Financial Officer | 25                                                                                                        





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##### Table of Contents

PART I.  FINANCIAL INFORMATION

|Item 1. | Financial Statements
|------- | --------------------

CARDIAC SCIENCE, INC.

CONSOLIDATED CONDENSED BALANCE SHEETS (Unaudited)

(Dollars in thousands, except per share
amounts)

|                                                                                                                                                                             |  |   | March 31, 2003 |   | December 31, 2002 |        
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | - | -------------- | - | ----------------- | -------
|                                                                                                                                                                             |  |   |                |   |                  
|ASSETS                                                                                                                                                                       |  |   |                |   |                   |        
|Current assets:                                                                                                                                                              |  |   |                |   |                   |        
|Cash and cash equivalents                                                                                                                                                    |  | $ | 11,111         |   | $                 | 15,598 
|Accounts receivable, net of allowance for doubtful accounts of $1,135 at March 31, 2003 and $1,042 at December 31, 2002                                                      |  |   | 11,799         |   |                   | 10,986 
|Inventories                                                                                                                                                                  |  |   | 5,981          |   |                   | 5,918  
|Assets held-for-sale                                                                                                                                                         |  |   | 1,452          |   |                   | 1,161  
|Prepaid expenses and other current assets                                                                                                                                    |  |   | 1,160          |   |                   | 2,098  
|                                                                                                                                                                             |  |   |                |   |                   |        
|Total current assets                                                                                                                                                         |  |   | 31,503         |   |                   | 35,761 
|Property and equipment, net                                                                                                                                                  |  |   | 5,197          |   |                   | 5,206  
|Goodwill and other intangibles, net                                                                                                                                          |  |   | 106,097        |   |                   | 106,546
|Other assets                                                                                                                                                                 |  |   | 7,465          |   |                   | 6,407  
|                                                                                                                                                                             |  |   |                |   |                   |        
|                                                                                                                                                                             |  | $ | 150,262        |   | $                 | 153,920
|                                                                                                                                                                             |  |   |                |   |                   |        
|LIABILITIES AND STOCKHOLDERS EQUITY                                                                                                                                         |  |   |                |   |                   |        
|Current liabilities:                                                                                                                                                         |  |   |                |   |                   |        
|Accounts payable                                                                                                                                                             |  | $ | 5,627          |   | $                 | 6,921  
|Accrued expenses and other current liabilities                                                                                                                               |  |   | 7,082          |   |                   | 7,188  
|Liabilities held-for-sale                                                                                                                                                    |  |   | 907            |   |                   | 2,067  
|Deferred revenue                                                                                                                                                             |  |   | 162            |   |                   | 162    
|Current portion of long term obligations                                                                                                                                     |  |   | 206            |   |                   | 246    
|                                                                                                                                                                             |  |   |                |   |                   |        
|Total current liabilities                                                                                                                                                    |  |   | 13,984         |   |                   | 16,584 
|Senior secured promissory notes                                                                                                                                              |  |   | 42,348         |   |                   | 41,054 
|Deferred revenue                                                                                                                                                             |  |   | 966            |   |                   | 1,021  
|Other long term obligations                                                                                                                                                  |  |   | 71             |   |                   | 91     
|                                                                                                                                                                             |  |   |                |   |                   |        
|Total liabilities                                                                                                                                                            |  |   | 57,369         |   |                   | 58,750 
|                                                                                                                                                                             |  |   |                |   |                   |        
|Minority interest in subsidiary                                                                                                                                              |  |   | 948            |   |                   | 900    
|                                                                                                                                                                             |  |   |                |   |                   |        
|Commitments and contingencies                                                                                                                                                |  |   |                |   |                   |        
|Stockholders equity:                                                                                                                                                        |  |   |                |   |                   |        
|Common stock - $.001 par value; 100,000,000 shares authorized, 66,978,566 and 66,827,170 shares issued and
outstanding at March 31, 2003 and December 31, 2002, respectively |  |   | 67             |   |                   | 67     
|Additional paid-in capital                                                                                                                                                   |  |   | 187,376        |   |                   | 187,239
|Accumulated other comprehensive income                                                                                                                                       |  |   | 235            |   |                   | 115    
|Accumulated deficit                                                                                                                                                          |  |   | (95,733        | ) |                   | (93,151
|                                                                                                                                                                             |  |   |                |   |                   |        
|Total stockholders equity                                                                                                                                                   |  |   | 91,945         |   |                   | 94,270 
|                                                                                                                                                                             |  |   |                |   |                   |        
|                                                                                                                                                                             |  | $ | 150,262        |   | $                 | 153,920
|                                                                                                                                                                             |  |   |                |   |                   |        

The accompanying notes are an integral part of the financial
statements.

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CARDIAC SCIENCE, INC.

CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (Unaudited)

(Dollars in thousands, except per share
amounts)

|                                                                                |  | Three Months Ended |           
|------------------------------------------------------------------------------- |  | ------------------ | ----------
|                                                                                |  |                    |           
|                                                                                |  | March 31, 2003     |           
|                                                                                |  |                    |           
|Net revenue                                                                     |  | $                  | 14,024    
|Cost of goods sold                                                              |  |                    | 6,089     
|                                                                                |  |                    |           
|Gross profit                                                                    |  |                    | 7,935     
|                                                                                |  |                    |           
|Operating expenses:                                                             |  |                    |           
|Sales and marketing                                                             |  |                    | 4,417     
|Research and development                                                        |  |                    | 1,102     
|General and administrative                                                      |  |                    | 3,207     
|Amortization of goodwill and other intangibles                                  |  |                    | 449       
|Gain on settlement                                                              |  |                    |          
|                                                                                |  |                    |           
|Total operating expenses                                                        |  |                    | 9,175     
|                                                                                |  |                    |           
|Loss from operations                                                            |  |                    | (1,240    
|Interest income (expense), net                                                  |  |                    | (1,401    
|                                                                                |  |                    |           
|Loss before minority interest                                                   |  |                    | (2,641    
|Minority interest in consolidated subsidiary                                    |  |                    | (48       
|                                                                                |  |                    |           
|Loss from continuing operations                                                 |  |                    | (2,689    
|Discontinued operations                                                         |  |                    | 107       
|                                                                                |  |                    |           
|Net loss                                                                        |  | $                  | (2,582    
|                                                                                |  |                    |           
|Net loss per share (basic and diluted)                                          |  | $                  | (0.04     
|                                                                                |  |                    |           
|Weighted average number of shares used in the computation of net loss per share |  |                    | 66,932,228
|                                                                                |  |                    |           

The accompanying notes are an integral part of the financial
statements.

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CARDIAC SCIENCE, INC.

CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE LOSS(Unaudited)

(Dollars in thousands)

|                                         |  | Three Months Ended |       
|---------------------------------------- |  | ------------------ | ------
|                                         |  |                    |       
|                                         |  | March 31, 2003     |       
|                                         |  |                    |       
|Net loss                                 |  | $                  | (2,582
|Other comprehensive income (loss):       |  |                    |       
|Foreign currency translation adjustments |  |                    | 120   
|                                         |  |                    |       
|Comprehensive loss                       |  | $                  | (2,462
|                                         |  |                    |       

The accompanying notes are an integral part of the financial
statements.

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CARDIAC SCIENCE, INC.

CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (Unaudited)

(Dollars in thousands)

|                                                                                |  | Three Months Ended |       
|------------------------------------------------------------------------------- |  | ------------------ | ------
|                                                                                |  |                    |       
|                                                                                |  | March 31, 2003     |       
|                                                                                |  |                    |       
|Cash flows from operating activities:                                           |  |                    |       
|Net loss                                                                        |  | $                  | (2,582
|Adjustments to reconcile net loss to net cash used in operating activities:     |  |                    |       
|Depreciation                                                                    |  |                    | 756   
|Amortization of intangibles                                                     |  |                    | 449   
|Minority interest                                                               |  |                    | 48    
|Provision for doubtful accounts                                                 |  |                    | 76    
|Gain on settlement                                                              |  |                    |      
|Corporate relocation and restructuring costs, net of accelerated Depreciation   |  |                    | 292   
|Accrued paid in kind interest and amortization of debt discount/ issuance costs |  |                    | 1,431 
|Changes in operating assets and liabilities:                                    |  |                    |       
|Accounts receivable                                                             |  |                    | (906  
|Inventories                                                                     |  |                    | 202   
|Placement of Powerheart CRMs at customer locations                              |  |                    | (447  
|Prepaid expenses and other assets                                               |  |                    | 275   
|Deferred revenue                                                                |  |                    | (55   
|Accounts payable and accrued expenses                                           |  |                    | (1,931
|Assets and liabilities held-for-sale                                            |  |                    | (1,451
|                                                                                |  |                    |       
|Net cash used in operating activities                                           |  |                    | (3,843
|                                                                                |  |                    |       
|Cash flows from investing activities:                                           |  |                    |       
|Purchase of property and equipment                                              |  |                    | (325  
|Funds in escrow to buy minority interest                                        |  |                    | (1,299
|Proceeds from sale of assets at subsidiary, net of costs                        |  |                    | 767   
|                                                                                |  |                    |       
|Net cash used in investing activities                                           |  |                    | (857  
|                                                                                |  |                    |       
|Cash flows from financing activities:                                           |  |                    |       
|Payments on long term obligations                                               |  |                    | (60   
|Proceeds from exercise of common stock options and warrants                     |  |                    | 137   
|Costs of equity issuances                                                       |  |                    |      
|                                                                                |  |                    |       
|Net cash provided by (used in) financing activities                             |  |                    | 77    
|                                                                                |  |                    |       
|Effect of exchange rates on cash and cash equivalents                           |  |                    | 136   
|                                                                                |  |                    |       
|Net decrease in cash and cash equivalents                                       |  |                    | (4,487
|Cash and cash equivalents at beginning of period                                |  |                    | 15,598
|                                                                                |  |                    |       
|Cash and cash equivalents at end of period                                      |  | $                  | 11,111
|                                                                                |  |                    |       

The accompanying notes are an integral part of the financial
statements.

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CARDIAC SCIENCE, INC.CONSOLIDATED CONDENSED NOTES TO FINANCIAL STATEMENTS

(Dollars in thousands, except per share amounts)

1.     Organization and Description of the Business

Cardiac Science, Inc. (the
Company) was incorporated in May 1991 and develops, manufactures and markets portable public access defibrillators and a fully-automatic in-hospital bedside defibrillator-monitor that continuously monitors cardiac patients, instantly
detects the onset of life-threatening abnormal heart rhythms, and, when appropriate, delivers defibrillation shocks within seconds and without human intervention to convert the heart back to its normal rhythm.  The Companys core
technology platform consists of its proprietary arrhythmia detection and discrimination software (RHYTHMx®), which is combined with its proprietary STAR®Biphasic defibrillation hardware and electrode
technology to create the only fully automatic in-hospital cardioverter defibrillator (the Powerheart® CRM®) and a unique semi-automatic, or automated defibrillator, (the Powerheart AED) for use in
out-of-hospital settings.  The Companys Powerheart® Cardiac Rhythm Module and Powerheart®brand AEDs along with Diascope G2® patient monitoring products are marketed by
its direct sales force in the United States and by international distributors around the world.

On July 1, 2000, the Company acquired
Cadent Medical Corporation, a privately held company, for an aggregate of 4,500,000 restricted shares of the Companys common stock.

On September 26, 2001, the Company acquired Survivalink Corporation, a privately held company, for $10,500 in cash, $25,000 in senior secured promissory notes, and
18,150,000 shares of the Companys common stock.

On November 30, 2001, the Company acquired 94.7% of Artema Medical AB for
4,150,976 shares of common stock and approximately $215 in cash.  In February 2003, the Company placed $1,299 in escrow in order to purchase the minority interest pursuant to relevant Swedish  securities regulations.

2.     Continued Existence

The Company believes its current cash
balances, combined with net cash that it expects to generate from operations, will sustain its ongoing operations for at least twelve months. In the event that the Company requires additional cash to support its operations during the next twelve
months, it will attempt to raise the required capital through either debt or equity arrangements. The Company cannot provide any assurance that the required capital will be available on acceptable terms, if at all, or that any financing activity
will not be dilutive to current stockholders of the Company. If the Company is not able to raise additional funds, it may be required to significantly curtail its operations and this would have an adverse effect on its financial position, results of
operations and cash flows.

3.     Summary of Significant Accounting Policies

In the opinion of the Companys management, the accompanying consolidated condensed unaudited financial statements include all adjustments (which consist only of
normal recurring adjustments) necessary for a fair presentation of its financial position at March 31, 2003 and results of operations and cash flows for the periods presented.  Although the Company believes that the disclosures in these
financial statements are adequate to make the information presented not misleading, certain information and disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been
condensed or omitted and should be read in conjunction with the Companys audited financial statements included in the Companys 2002 Annual Report on Form 10-K.  Results of operations for the three months ended March 31, 2003 are not
necessarily indicative of results for the full year.  With the exception of the new significant accounting policies set forth below, the Companys significant accounting policies have not materially changed as of March 31, 2003.

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Inventories

Inventories are stated at the lower of cost (first-in, first-out) or market value.  Inventories consist of the following as of:

|                |  | March 31, 2003 |       | December 31, 2002 |  
|--------------- |  | -------------- | ----- | ----------------- | -
|                |  |                |       |                   |  
|Raw materials   |  | $              | 1,859 |                   | $
|Work in process |  |                | 728   |                   |  
|Finished goods  |  |                | 3,394 |                   |  
|                |  |                |       |                   |  
|                |  | $              | 5,981 |                   | $
|                |  |                |       |                   |  

During the three months ended March
31, 2003, the Company placed $447 of CRM units at customer locations.  The Company retains title to these units and such amounts were transferred to property and equipment where they are being depreciated over a five-year period.

Goodwill and Intangibles

In accordance with SFAS No. 142, Goodwill and Other Intangible Assets, which became effective January 1, 2002, goodwill and other intangible assets with
indeterminate lives are no longer subject to amortization but are tested for impairment annually or whenever events or changes in circumstances indicate that the asset might be impaired.  The Company has also reclassified the balance of
acquired workforce to goodwill.  Accordingly, no goodwill or acquired workforce amortization has been recognized since January 1, 2002.  Other intangible assets with finite lives continue to be subject to amortization, and any impairment
is determined in accordance with SFAS No. 144, Accounting for the Impairment or Disposal of Long-Lived Assets.   Recorded intangible asset amortization expense for the quarters ended March 31, 2003 and 2002 was $449 and $501,
respectively.  Estimated intangible asset amortization expense (based on existing intangible assets) for the years ended December 31, 2003, 2004, 2005, 2006 and 2007 is $1,506, $1,183, $1,183, $1,183 and $1,183, respectively.

Goodwill and other intangible assets consist of the following as of:

|                                |  | March 31 2003 |         | December 31 2002 |  
|------------------------------- |  | ------------- | ------- | ---------------- | -
|                                |  |               |         |                  |  
|Patents and patent applications |  | $             | 10,211  |                  | $
|Customer base                   |  |               | 1,175   |                  |  
|Trade name                      |  |               | 378     |                  |  
|Goodwill                        |  |               | 99,659  |                  |  
|                                |  |               |         |                  |  
|                                |  |               | 111,423 |                  |  
|Less: accumulated amortization  |  |               | (5,326  | )                |  
|                                |  |               |         |                  |  
|                                |  | $             | 106,097 |                  | $
|                                |  |               |         |                  |  

Product Warranty

Our products are generally under warranty against defects in material and workmanship for a period of one to five years. We estimate warranty costs
at the time of sale based on historical experience. Estimated warranty expenses are recorded as an accrued liability, with a corresponding provision to cost of sales.

Changes in the product warranty accrual for the quarter ended March 31, 2003 were as follows:

|Warranty accrual, December 31, 2002                         |  | $ | 1,604 |  
|----------------------------------------------------------- |  | - | ----- | -
|Change in liability for warranties issued during the period |  |   | 88    |  
|Warranty expenditures                                       |  |   | (133  | )
|                                                            |  |   |       |  
|Warranty accrual, March 31, 2003                            |  | $ | 1,559 |  
|                                                            |  |   |       |  

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Stock Based Compensation

On December 31, 2002, the FASB issued Statement No. 148 (SFAS No. 148), Accounting for Stock-Based CompensationTransition and Disclosure, which
amends SFAS No. 123, Accounting for Stock-Based Compensation. SFAS No. 148 allows for three methods of transition for those companies that adopt SFAS No. 123s provisions for fair value recognition. SFAS No. 148s
transition guidance and provisions for annual and interim disclosures are effective for fiscal years ending after December 15, 2002. The Company will not adopt fair value accounting for employee stock options under SFAS No. 123 and SFAS No. 148, but
will continue to disclose the required pro-forma information.

The Company has adopted the disclosure-only provisions of SFAS No. 123,
Accounting for Stock-Based Compensation. SFAS No. 123 defines a fair value based method of accounting for an employee stock option. Fair value of the stock option is determined considering factors such as the exercise price, the expected life
of the option, the current price of the underlying stock, expected dividends on the stock, and the risk-free interest rate for the expected term of the option. Under the fair value based method, compensation cost is measured at the grant date based
on the fair value of the award and is recognized over the service period. Pro forma disclosures are required for entities that elect to continue to measure compensation cost under the intrinsic method provided by Accounting Principles Board Opinion
(APB) No. 25.

Additionally, in accordance with SFAS 123 and EITF Issue No. 96-18, Accounting for Equity Instruments That
are Issued to Other Than Employees for Acquiring, or in Conjunction with Selling Goods or Services, the Company measures stock based non-employee compensation at fair value.

Under SFAS No. 123, stock based compensation expense related to stock options granted to consultants is recognized as the stock options are earned. The fair value of
the stock options granted is calculated at each reporting date using the Black-Scholes option pricing model. As a result, the stock based compensation expense will fluctuate as the fair market value of the Companys stock fluctuates.

Had compensation costs been determined based upon the fair value at the grant date, consistent with the methodology prescribed under
SFAS No. 123, the Companys total stock-based compensation cost, proforma net loss, and proforma net loss per share, basic and diluted, would have been as follows:

|                                                                       |  | Three Months Ended |       
|---------------------------------------------------------------------- |  | ------------------ | ------
|                                                                       |  |                    |       
|                                                                       |  | March 31, 2003     |       
|                                                                       |  |                    |       
|Net loss, as reported                                                  |  | $                  | (2,582
|Add:  Compensation expense included in reported net loss               |  |                    |      
|Deduct:  Compensation expense determined under fair value based method |  |                    | (981  
|                                                                       |  |                    |       
|Pro forma net loss                                                     |  |                    | (3,563
|                                                                       |  |                    |       
|Net loss per share, as reported                                        |  |                    | (0.04 
|                                                                       |  |                    |       
|Pro forma net loss per share                                           |  |                    | (0.05 
|                                                                       |  |                    |       

Recent
Pronouncements

In June 2002, the Financial Accounting Standards Board (FASB) issued SFAS No. 146 (SFAS No. 146),
Accounting for Exit or Disposal Activities. SFAS No. 146 is effective for exit or disposal activities that are initiated after December 31, 2002. SFAS No. 146 addresses significant issues regarding the recognition, measurement, and reporting
of costs that are associated with exit and disposal activities, including restructuring

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activities that were accounted for pursuant to the guidance that the Emerging Issues Task Force (EITF) has set forth in EITF Issue No. 94-3, Liability Recognition for
Certain Employee Termination Benefits and Other Costs to Exit an Activity (including Certain Costs Incurred in a Restructuring). The scope of SFAS No. 146 also includes (1) costs related to terminating a contract that is not a
capital lease, and (2) termination benefits that employees who are involuntarily terminated receive under the terms of a one-time benefit arrangement that is not an ongoing benefit arrangement or an individual deferred-compensation contract. The
Companys adoption of SFAS No. 146 had an impact on its accounting for its corporate restructuring and relocation (see Note 6).

In
November 2002, the FASB issued Interpretation No. 45 (FIN 45),Guarantors Accounting and Disclosure Requirements for Guarantees, Including Indirect Guarantees Of Indebtedness Of Others, an Interpretation of FASB Statements No. 5,
57, and 107 and Rescission of FASB Interpretation No. 34. FIN 45 relates to the accounting for and disclosure of guarantees and addresses (1) an obligation to stand ready to perform over the term of the guarantee in the event that the
specified triggering events or conditions occur and (2) a contingent obligation to make future payments if those triggering events or conditions occur. FIN 45 excludes certain types of guarantees from its initial recognition and measurement,
including guarantees accounted for as derivative instruments and hedging activities, guarantees relating to performance of non-financial assets that are owned by the guaranteed party (e.g., product warranties), guarantees issued in a business
combination that represent contingent consideration, and others. They are subject to its disclosure requirements. The disclosure requirements are effective for financial statements of interim and annual periods ending after December 15, 2002. The
initial recognition and initial measurement provisions should be applied only on a prospective basis to guarantees issued or modified after December 31, 2002. The guarantors previous accounting for guarantees issued prior to the initial
application date of FIN 45 should not be revised or restated to reflect the effect of the new recognition and measurement provisions. The adoption of FIN 45 did not have a material impact on the Companys consolidated financial
statements.

EITF Consensus Issue No. 00-21 (the Issue 00-21), Revenue Arrangements with Multiple
Deliverables was first discussed at the July 2000 EITF meeting and is expected to be finalized at the March 2003 meeting. It addresses the accounting for multiple element revenue arrangements, which involve more than one deliverable or unit of
accounting in circumstances, where the delivery of those units takes place in different accounting periods. Issue 00-21 requires disclosure of the accounting policy for revenue recognition of multiple element revenue arrangements and the nature and
description of such arrangements. It will be effective for revenue arrangements entered into in fiscal periods beginning after June 15, 2003. The Company does not expect that the adoption of Issue 00-21 will have a significant impact on the
Companys consolidated financial statements.

4.       Segment reporting

The Company follows the provisions of SFAS No. 131, Disclosures about Segments of an Enterprise and Related Information.SFAS No. 131 established standards for
reporting information about operating segments in annual financial statements and requires selected information about operating segments in interim financial reports issued to stockholders. It also established standards for related disclosures about
products and services, geographic areas and major customers. An operating segment is defined as a component of an enterprise that engages in business activities from which it may earn revenues and incur expenses whose separate financial information
is available and is evaluated regularly by the Companys chief operating decision makers, or decision making group, to perform resource allocations and performance assessments.

The Companys chief operating decision makers are the Executive Management Team which is comprised of the Chief Executive Officer and senior executive officers
of the Company. Based on evaluation of the Companys financial information, management believes that the Company operates in one reportable segment with its various product lines that service the external defibrillation and cardiac monitoring
industry. The product lines include AEDs and related accessories, Powerhearts, electrodes and related accessories, and emergency defibrillators, monitors and related accessories.

The Companys chief operating decision makers evaluate revenue performance of product lines, both domestically and internationally, however, operating, strategic
and resource allocation decisions are not based on product line performance, but rather on the Companys overall performance in its operating segment.

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The following is a breakdown of net sales by product line:

|                                                           |  | Three Months Ended |       
|---------------------------------------------------------- |  | ------------------ | ------
|                                                           |  |                    |       
|                                                           |  | March 31, 2003     |       
|                                                           |  |                    |       
|AEDs and related accessories                               |  | $                  | 12,414
|Powerhearts, electrodes and related accessories            |  |                    | 400   
|Emergency defibrillators, monitors and related accessories |  |                    | 1,210 
|                                                           |  |                    |       
|                                                           |  | $                  | 14,024
|                                                           |  |                    |       

The following is a breakdown of net
sales by geographic location:

|              |  | Three Months Ended |       
|------------- |  | ------------------ | ------
|              |  |                    |       
|              |  | March 31, 2003     |       
|              |  |                    |       
|United States |  | $                  | 10,481
|Foreign       |  |                    | 3,543 
|              |  |                    |       
|              |  | $                  | 14,024
|              |  |                    |       

The following is a breakdown of the
Companys long-lived assets by geographic location as of:

|              |  | March 31, 2003 |         | December 31, 2002 |  
|------------- |  | -------------- | ------- | ----------------- | -
|              |  |                |         |                   |  
|United States |  | $              | 97,876  |                   | $
|Foreign       |  |                | 20,883  |                   |  
|              |  |                |         |                   |  
|              |  | $              | 118,759 |                   | $
|              |  |                |         |                   |  

5.       Artema Restructuring and Planned Disposal of the
MCS Gas Business

As part of the Artema acquisition, the Company had developed a plan to restructure the operations of the
manufacturing facility in Denmark (the plan). Originally, the Company recorded certain purchase price adjustments in connection with the plan totaling $3,064. The plan included plant and facility closure costs that were either
contractually obligated or were incremental in nature, adjustments to fair market value for owned facilities to be disposed of based on market assessments, adjustments to fair value for raw materials that would not be converted into finished goods
and certain severance related costs for employees in closed facilities that the Company was obligated to pay upon execution of the plan.

The plan, which included closing the manufacturing facility in Denmark, relocating from the then current facility in Copenhagen, as well as discontinuing or
subcontracting the manufacturing of certain product lines, was completed in the quarter ended September 30, 2002. Additionally, an existing defibrillator product line and the accompanying future service obligations were sold to a European company as
part of the plan. The Company sold related inventories, manufacturing assets and the right to manufacture and sell the existing products for consideration of cash and future royalty payments based on future units produced. No gain or loss was
recognized on the transaction as the disposal of these assets was contemplated as a part of the plan. Upon execution of the plan, the Company recorded an additional $905 of purchase price adjustments to reflect the fair value of the assets disposed.

The Company also entered into a licensing agreement with the European company granting them the right to use Cardiac Sciences
proprietary bi-phasic defibrillation technology. In consideration, the Company received an upfront payment of $487 and will receive eight quarterly installments over the next 2 years totaling $500. The total licensing revenue of $987 will be
recognized on a pro-rata basis over the next seven years, which is the term of the agreement and, accordingly, the Company recognized $35 of licensing revenue in the three months ended March 31, 2003.

Also as part of the Artema acquisition, the Company identified the MCS gas business, located in Stockholm, Sweden, as a business segment acquired in a business
combination accounted for as a purchase, to be

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disposed of. The MCS gas business designs, develops and manufactures gas analyzers, which are sold to OEM patient monitoring customers. The MCS gas business is a distinct and
separate business unit. The Company is accounting for this in accordance with EITF 87-11, Allocation of Purchase Price to Assets to be Sold,which requires that the operations of the MCS gas business be excluded from the consolidated
operating results of the Company. The Company had initially estimated that the net loss of the MCS gas business from the acquisition date until disposition would be approximately $1,017 and had included this as a liability assumed in the acquisition
and included it in the purchase price allocation. This estimated net loss was subsequently revised to an estimated loss of $306. Accordingly, a net loss of $306 has been excluded for the period from acquisition through November 30, 2002 and
subsequent results of operations have been recorded as discontinued operations in accordance with EITF 90-6, Accounting for Certain Events not Addressed in Issue No. 87-11 Relating to Acquired Operating Unit to be Sold.

The following is a breakdown of the restructuring accruals recorded related to the Danish facilities shutdown and relocation and the
MCS gas business disposal:

|                                                          |  | Original Adjustment |       | Balance at December 31, 2002 |   | Cash Payments |  | Non-Cash Adjustments |      | Balance at  March 31, 2003 |  
|--------------------------------------------------------- |  | ------------------- | ----- | ---------------------------- | - | ------------- |  | -------------------- | ---- | -------------------------- | -
|                                                          |  |                     |       |                              |   |               |  |                      |      |                            |  
|Restructuring accruals:                                   |  |                     |       |                              |   |               |  |                      |      |                            |  
|Loss on closure of Danish facilities                      |  | $                   | 648   |                              | $ | 728           |  | $                    | (83  | )                          | $
|Danish facilities severance and other miscellaneous costs |  |                     | 520   |                              |   | 36            |  |                      | (4   | )                          |  
|Losses from MCS gas business                              |  |                     | 1,017 |                              |   |              |  |                      |     |                            |  
|MCS gas business severance and other miscellaneous costs  |  |                     |      |                              |   | 1,280         |  |                      | (30  | )                          |  
|                                                          |  |                     |       |                              |   |               |  |                      |      |                            |  
|                                                          |  | $                   | 2,185 |                              | $ | 2,044         |  | $                    | (117 | )                          | $
|                                                          |  |                     |       |                              |   |               |  |                      |      |                            |  

The following is a breakdown of the
MCS gas business assets and liabilities held-for-sale as of:

|                                      |  | March 31, 2003 |       | December 31, 2002 |  
|------------------------------------- |  | -------------- | ----- | ----------------- | -
|                                      |  |                |       |                   |  
|Accounts receivables, net             |  | $              | 551   |                   | $
|Inventories, net                      |  |                | 649   |                   |  
|Other assets                          |  |                | 252   |                   |  
|                                      |  |                |       |                   |  
|Assets held-for-sale                  |  | $              | 1,452 |                   | $
|                                      |  |                |       |                   |  
|Accounts payable and accrued expenses |  | $              | 907   |                   | $
|Line of credit                        |  |                |      |                   |  
|                                      |  |                |       |                   |  
|Liabilities held-for-sale             |  | $              | 907   |                   | $
|                                      |  |                |       |                   |  

In February 2003, the Company placed
in escrow $1,299 in cash for the purchase of the remaining 5.3% minority interest in Artema, which is still pending finalization.  This amount is included in Other Assets in the accompanying balance sheet as of March 31, 2003.  In
addition, the Company paid off Artemas outstanding line of credit with a Swedish bank.

6.       Corporate Relocation and
Restructuring

During the quarter, the Company relocated its corporate headquarters, expanded its manufacturing capacity, and
consolidated its accounting and finance functions in Irvine, California.

The following is a breakdown of the accrual recorded
related to the expansion, relocation and restructuring activities:

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|                                                        |  | Total Expected Costs |     | Costs Incurred as of March 31, 2003 |   | Cash Payments |  | Accrued as of March 31, 2003 |     | Future Expected Costs |  
|------------------------------------------------------- |  | -------------------- | --- | ----------------------------------- | - | ------------- |  | ---------------------------- | --- | --------------------- | -
|                                                        |  |                      |     |                                     |   |               |  |                              |     |                       |  
|Severance costs                                         |  | $                    | 199 |                                     | $ | 147           |  | $                            | (10 | )                     | $
|Moving and travel costs                                 |  |                      | 68  |                                     |   | 6             |  |                              |    |                       |  
|Lease termination costs                                 |  |                      | 139 |                                     |   | 139           |  |                              |    |                       |  
|Accelerated depreciation of leaseholds and other assets |  |                      | 288 |                                     |   | 239           |  |                              |    |                       |  
|                                                        |  |                      |     |                                     |   |               |  |                              |     |                       |  
|                                                        |  | $                    | 694 |                                     | $ | 531           |  | $                            | (10 | )                     | $
|                                                        |  |                      |     |                                     |   |               |  |                              |     |                       |  

The accrual represents costs
recognized pursuant to FASB Statement No. 146, Accounting for Costs Associated with Exit or Disposal Activities and SAB 100, Restructuring and Impairment Charges.  The Company has committed to a sufficiently detailed plan that
identifies significant actions to be taken and the activities that will not be continued.  The expected date of completion of the plan is May 31, 2003 and significant changes to the plan are not likely.  The involuntary one-time
employee-termination arrangement establishes the benefits to be paid to employees and specifically identifies the classifications or functions of those employees, their locations, and the expected completion date.  All employees have been
informed about the terms of the benefit arrangement, including the benefits that employees will receive upon termination (including but not limited to cash payments), in sufficient detail to enable employees to determine the type and amount of
benefits they will receive.  We have reviewed the net book value of leasehold improvements to be abandoned in certain facilities in accordance with SFAS No. 144, and have appropriately recorded an adjustment to accelerate the related
depreciation over the revised useful life through their cease-use dates.

The costs which were incurred as of March 31, 2003 are
included in general and administrative expenses in the accompanying consolidated income statement for the three months ended March 31, 2003 and the remaining accrual is included in accrued expenses and other current liabilities in the accompanying
consolidated balance sheet as of March 31, 2003.

7.       Distribution and License Agreement

In December 1998, the Company entered into a five-year exclusive distribution and licensing agreement with Medtronic Physio-Control (MPC), a subsidiary of
Medtronic, Inc. (Medtronic). Under the original agreement, MPC had the exclusive right to market the Powerheart in the United States and Canada. In May 1999, the agreement was expanded to include the United Kingdom, Germany, France, and
certain Scandinavian countries. Subsequent to December 31, 2000, MPC provided the Company with notice that, among other things, the acquisition of Survivalink (see Note 9), a significant competitor of MPC, placed MPC at substantial risk of violating
restrictions placed on Medtronic by the Federal Trade Commission in connection with Medtronics acquisition of Physio-Control. MPC believed these restrictions, among other things, directly impacted MPCs ability to continue its
relationship with Cardiac Science. MPC had stated that in light of such fact, it believed it to be in the best interests of the parties to terminate the agreement. The Company entered into a settlement agreement and mutual release with MPC in
February 2002. The terms of this settlement agreement provided that MPC return to the Company, at no charge, approximately 220 Powerheart units, which MPC had previously purchased and paid for, in substantially the same condition in which the units
were originally sold to MPC. Additionally, the Company owed MPC $1,100 pursuant to a senior secured promissory note issued by the Company to MPC in the merger transaction between the Company and Survivalink. This $1,100 is part of the $25,800 of
senior secured promissory notes issued in the Survivalink merger. Pursuant to this settlement agreement, MPC agreed to forgive and release payment of $832 of the amount owing under the promissory note to MPC.

8.       Litigation

In November 2002, the Company settled a patent
infringement suit with ZOLL Medical Corporation (ZOLL), which it originally initiated in March 2002. The terms of the settlement included the cross licensing of a number of patents between the two parties. Under the terms of the
confidential settlement agreement, the Company received a settlement amount and will be entitled to royalties under a licensing agreement based on ZOLLs AED

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sales. The Company has recorded the settlement as an offset to legal expense included in general and administrative expenses in the accompanying consolidated income statement
for the year ended December 31, 2002.

On December 3, 2002, the Company filed a complaint in Orange County Superior Court against
Medical Research Laboratories, Inc. (MRL) alleging declaratory relief and breach of contract arising out of a July 29, 2002 letter of intent entered into between the parties. The Company alleges MRL failed to comply with certain
conditions of closing set forth in the letter of intent whereby the Company would acquire all of MRLs stock. As a result of MRLs failure to comply with the closing requirements, the Company seeks damages in excess of $3,000.  MRL
filed a cross-complaint, also seeking breach of contract and declaratory relief arising out of the same letter of intent. Thereafter, the case was removed to the United States District Court for the Central District of California. MRL has 
filed a motion to change venue to the Northern District of Illinois, which is pending. MRL contends that the Company breached the letter of intent and seeks damages in excess of $5,000. The Company believes that the allegations against it are
without merit, and the Company intends to vigorously defend against MRLs claims. At this stage, the Company is unable to predict the outcome of this litigation or its ultimate effect, if any, on its financial condition.

In February 2003, the Company announced that it had filed patent infringement action against Philips Medical Systems North America, Inc.
(Philips), Philips Electronics North America Corporation and Koninklijke Philips Electronics N.V. in the United States District Court for Minnesota. The suit charges that Philips automated external defibrillators sold under the
names HeartStart OnSite Defibrillator and HeartStart Home Defibrillator infringe at least seven of the Companys United States patents. The Philips HeartStart Home Defibrillator, which was recently cleared by
the U.S. Food and Drug Administration (FDA) for marketing in the United States, is promoted by Philips as including, among other things, pre-connected disposable defibrillation electrodes and daily self-testing of electrodes and battery,
features that the suit alleges are key competitive advantages of our Powerheart AED and are covered under the  Companys patents. At this stage, the Company is unable to predict the outcome of this litigation or its ultimate effect, if
any, on its financial condition.

In the ordinary course of business, various lawsuits and claims are filed against the Company. While
the outcome of these matters is currently not determinable, management believes that the ultimate resolution of these matters will not have a material adverse effect on the Companys operations or financial position.

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|ITEM 2.                | MANAGEMENTS DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.
|---------------------- | --------------------------------------------------------------------------------------
|(Dollars in thousands)

The following discussion should be read in conjunction with the consolidated financial statements and notes thereto set forth herein.

A Warning About Forward-Looking Information and the Safe Harbor Under the Securities Litigation Reform Act of 1995

This Quarterly Report on Form 10-Q and the other reports, releases, and statements (both written and oral) issued by us and our officers from time to time may contain
statements concerning our future results, future performance, intentions, objectives, plans, and expectations that are deemed to be forward-looking statements. These statements include statements regarding:

| |  | products under development;                                                                                                                      
| | - | -------------------------------------------------------------------------------------------------------------------------------------------------
| |   |                                                                                                                                                  
| |  | technological and competitive advantages;                                                                                                        
| |   |                                                                                                                                                  
| |  | timetable for commercial introduction of our products;                                                                                           
| |   |                                                                                                                                                  
| |  | our ability to improve patient care, increase survival rates, decrease recovery time, lessen patient debilitation, and reduce patient care costs;
| |   |                                                                                                                                                  
| |  | markets, demand for our services, purchase orders and commitments;                                                                               
| |   |                                                                                                                                                  
| |  | strategic alliances;                                                                                                                             
| |   |                                                                                                                                                  
| |  | the competitive and regulatory environment;                                                                                                      
| |   |                                                                                                                                                  
| |  | planned integration of technologies with products; and                                                                                           
| |   |                                                                                                                                                  
| |  | business strategies.                                                                                                                             

Such statements are
made in reliance upon safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Our actual results, performance, and achievements may differ significantly from those discussed or implied in the forward-looking statements as a
result of a number of known and unknown risks and uncertainties including, without limitation, those discussed below and in Managements Discussion and Analysis of Financial Condition and Results of Operations. Although we believe
that our assumptions underlying the forward-looking statements are reasonable, any of the assumptions could prove inaccurate and, therefore, we cannot assure you that the results discussed or implied in such forward-looking statements will prove to
be accurate. In light of the significant uncertainties inherent in such forward-looking statements, the inclusion of such statements should not be regarded as a representation by us or any other person that our objectives and plans will be achieved.
Words such as believes, anticipates, expects, intends, may, and similar expressions are intended to identify forward-looking statements, but are not the exclusive means of identifying such
statements. We undertake no obligation to revise any of these forward-looking statements.

Sometimes we communicate with securities
analysts. It is against our policy to disclose to analysts any material non-public information or other confidential commercial information. You should not assume that we agree with any statement or report issued by any analyst regardless of the
content of the statement or report. We have a policy against issuing financial forecasts or projections or confirming the accuracy of forecasts or projections issued by others. If reports issued by securities analysts contain projections, forecasts
or opinions, those reports are not our responsibility.

General

Sudden
cardiac arrest (SCA) is the leading cause of death in the United States and Europe.  According to the Centers for Disease Control and Prevention (the CDC) approximately 450,000 people die annually in the U.S. from sudden
cardiac arrest.  Of that number, approximately one-third die from SCA inside a hospital.  For every minute that passes from the onset of sudden cardiac arrest, a persons survival rate decreases by 10% or more.

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Clinical studies have shown that the average survival rate for individuals suffering SCA outside the hospital is estimated at 5% and for patients suffering SCA in-hospital is
about 15% - a rate that has not changed since the 1960s.    The American Heart Association and other major resuscitation councils around the world have acknowledged that immediate defibrillation therapy is the single most
important factor in determining the survival rate of sudden cardiac arrest victims.

Our core technology platform consists of proprietary
arrhythmia detection and discrimination software (RHYTHMx®), which is combined with our proprietary STAR® Biphasic defibrillation hardware and disposable defibrillation electrode technology to create the
only fully automatic in-hospital cardioverter defibrillator, the Powerheart® Cardiac Rhythm Module (the CRMä) and an automated
public access defibrillator, (the Powerheart® AED) for use in out of hospital settings.  The RHYTHMx technology allows our line of defibrillators to:

| |  | continuously monitor a patients heart rhythms                                                                                                                                                                                                                  
| | - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| |   |                                                                                                                                                                                                                                                                 
| |  | instantly and accurately detect the onset of life-threatening arrhythmias, and                                                                                                                                                                                  
| |   |                                                                                                                                                                                                                                                                 
| |  | in the case of Powerheart CRM, automatically deliver a potentially life saving defibrillation shock within seconds of the onset of SCA and with no human intervention, or in the
case of our Powerheart AED product, advise the operator to deliver the therapy.

Our initial product, the Powerheart
AECD®, was introduced into the United States in February 2000.  This first generation product was replaced by our second-generation device, the Powerheart CRM, which received market clearance from the U.S. Food and Drug
Administration (FDA) in February 2002. We began shipping the CRM in limited quantities in March 2002.  The Powerheart CRM is approximately 25% of the size of the original Powerheart and costs approximately 60% less to
manufacture.  Based on the safety and efficacy of the RHYTHMx technology, the Powerheart CRM is the only hospital bedside monitor defibrillator cleared by the FDA to be prophylactically attached to hospital patients and provide automatic
defibrillation without human intervention.   The Powerheart CRM is a compact, portable, fully-automatic defibrillator, which utilizes a proprietary and patented biphasic defibrillation waveform and is designed to provide complete cardiac
rhythm management capabilities, including fully automatic, semi-automatic and manual defibrillation therapy modes and external pacing and function as a stand-alone defibrillator, or in conjunction with existing third party patient monitoring
systems.  We believe that the Powerheart CRM can create a new standard of care for hospitalized cardiac patients and significantly increase the survival rate of patients suffering sudden cardiac arrest.

In September 2001, we acquired Survivalink Corporation, a Minneapolis, Minnesota based developer, manufacturer and marketer of automated public access defibrillators
(AEDs) and related accessories and products.  These devices are portable, emergency defibrillators intended for use by minimally trained rescuers in the treatment of SCA in a wide variety of settings.   The
Survivalink® AED is distinct from the competition and features one-button operation and pre-connected, interchangeable electrodes and RescueReady® self-testing capabilities that ensure that the battery, circuitry and
electrodes are functioning properly.

In early 2002, we successfully integrated our RHYTHMx algorithm technology into the
Survivalink AED, and made other improvements in the device.  Among other things, the Powerheart AED is now capable of being attached to people exhibiting symptoms of cardiac arrest and providing continuous monitoring of patients
post-resuscitation.  In February 2002, we received FDA clearance to market and began shipping the Powerheart AED.

While the
Powerheart AED currently accounts for the overwhelming majority of our AED sales, we plan to continue to manufacture and make available  the original Survivalink AED to customers.

In December 2001, we acquired approximately 95% of the outstanding shares of Artema Medical AB, a Stockholm, Sweden based developer and manufacturer of emergency
defibrillators and patient monitoring equipment, which are sold via distributors exclusively outside the U.S.  In addition to broadening our product line, the acquisition increased our international distribution channel.  In February 2003,
we placed $1,299 in escrow in order to purchase the minority interest pursuant to relevant Swedish  securities regulations.

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We own 70 issued patents and have 12 patent applications pending relating to our core defibrillation and software
technology, wearable defibrillation technology, disposable defibrillation electrode pad technology and to the AED technology originally developed by Survivalink.  We believe strongly in the value of our intellectual property and intend to
continue to file additional patent applications relating to our technology.

We are highly focused on increasing revenue and gaining
additional market share in the fast growing AED or public access defibrillation market in our domestic U.S. market as well as other countries around the world. We estimate that we currently hold approximately 25% of the worldwide market for AEDs,
which is projected to grow at a rate of 30% per year according to the market analysis published by Frost & Sullivan in 2000.  They also estimate that the worldwide market for AEDs will expand to over 250,000 units a year by 2006, accounting
for over $650 million in annual market revenue.

Our multi-faceted growth strategy includes sales and marketing initiatives
designed to take advantage of fast growing segments such as the U.S. corporate workplace market segment, municipal public access programs, schools, law enforcement, fire departments and government and continued increases in our direct and in-direct
distribution channels. Our growth strategy is focused on offering what we believe is the easiest to use and most technologically sophisticated line of AEDs on the market.  We are currently marketing the Survivalink and Powerheart AEDs in the
U.S. through our direct sales force and over 75 independent distributors.

Since the acquisition of Survivalink in September 2001, we
have tripled the size of our direct sales force. At the end of March, there were 55 direct sales persons and 8 sales managers in the U.S. and 8 employee sales managers supporting international distributors in overseas markets.  Internationally,
we are selling our complete line of products, including our AEDs, through independent medical device distributors on a country-by-country basis with over 45 distributors selling the Companys products in over 50 countries.

Our strategy for the hospital based Powerheart CRM is centered on building an installed base of devices in order to maximize the potential recurring revenue
associated from the sale of our proprietary, single use, disposable defibrillator electrode pads.  The Powerheart CRM is designed to utilize these defibrillator electrodes, which for sanitary, safety and performance reasons, must be changed
once every 24 hours.  Our defibrillator electrodes feature proprietary smart chip technology, designed to ensure that only our electrodes will be used with the Powerheart CRM.  In April 2001, we began direct marketing
activities to hospitals in the United States, and are currently marketing the Powerheart CRM through a 3 person direct sales force, supported by 6 clinical specialists.  We offer the Powerheart CRM to hospitals on a traditional outright
purchase basis as well as on a no-cap program, which allows the customer to adopt the technology without up-front capital expenditure.  Under this model, we market the Powerheart CRM to U.S. hospitals directly, and agree to place
units in a customers facility, while retaining ownership of the unit, with no upfront capital equipment charge, in exchange for an agreement to purchase a specific number of our proprietary, disposable defibrillation electrodes monthly or
quarterly.  We believe this model will increase the rate of adoption of our Powerheart CRM technology by addressing the capital budget constraints many U.S. hospitals face and will ultimately result in higher levels of recurring revenue from
disposable electrodes.

Internationally, the Powerheart CRM is sold to end users via distributors.  We also intend to enter into
strategic alliances or OEM relationships with third party patient monitoring equipment manufacturers to increase the adoption rate for our in-hospital technology.

Results of Operations

Quarter Ended March 31, 2003 Compared to the Quarter Ended March 31, 2002

Net revenue for the quarter ended March 31, 2003 increased $4,663 or 49.8% to $14,024, compared to $9,361 for the quarter ended March 31, 2002. This increase is
primarily attributable to higher levels of AED and related accessories sales of $12,414 this quarter as compared to $7,151 in the first quarter of 2002.

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Cost of goods sold for the quarter ended March 31, 2003 were $6,089 compared to $4,910 for the quarter ended March
31, 2002.  Gross margins, as a percentage of revenue, improved to 56.6% in the first quarter of 2003 compared to 47.5% in the first quarter of 2002. The improvement in gross margins is primarily the result of an increase of higher margin AEDs
sales as a percentage of total revenue. In addition, the gross margin on the Diascope patient monitor has increased year over year due to reductions in manufacturing costs.

Sales and marketing expenses increased $803 to $4,417 or 31.5% of revenue for the quarter ended March 31, 2003, compared to $3,614 or 38.6% of revenue in the quarter
ended March 31, 2002. This increase in sales and marketing expense is primarily attributable to higher levels of direct sales costs, including salaries, fringe benefits, commissions and travel costs associated with the expansion of our direct AED
sales force which grew from approximately 45 to 55 representatives year over year.

Research and development expenses decreased $451 or
29.0% to $1,102 in the first quarter of 2003, compared to $1,553 for the quarter ended March 31, 2002. This decrease is primarily attributable to a reduction in headcount and associated costs related to the completion of the Powerheart CRM project
in 2002.

General and administrative expenses for the quarter ended March 31, 2003 were $3,207, which represented an increase of $753 or
30.7% over the $2,454 in the quarter ended March 31, 2002. This increase was primarily comprised of $531 of non-recurring charges related to our facility relocations and centralization of certain operations and a $100 increase in legal expense
associated with certain patent litigation.

Amortization of goodwill and other intangibles was $449 for the quarter ended March
31, 2003, a decrease of $52 or 10.4% from the $501 for the quarter ended March 31, 2002. This decrease resulted from certain identifiable intangible assets becoming fully amortized.

Net interest expense for the quarter ended March 31, 2003 was $1,401 compared to net interest expense of $659 for the same period in 2002. This increase was a result
of higher interest expense and amortization of the debt discount and debt issuance costs associated with the Senior Debt issued in May 2002.

Liquidity and Capital Resources

At March 31, 2003, we had cash and cash equivalents of $11,111 and working capital of $17,519 as compared to cash and cash equivalents of $15,598 and
working capital of $19,177 at December 31, 2002. At March 31, 2003 our current days sales outstanding on accounts receivable was approximately 76 days. From inception, our sources of funding for operations and mergers and acquisition activity were
derived from placements of debt and equity securities.  In May 2002, we entered into a Senior Note and Warrant Purchase Agreement with investors pursuant to which the investors loaned $50,000 to us.  We in turn repaid the $26,468, plus
accrued interest, in senior promissory notes relating to the Survivalink acquisition.

From inception through March 31, 2003, we
incurred losses of $95,733. Recovery of our assets is dependent upon future events, the outcome of which is indeterminable. Additionally, transition to profitable operations is dependent upon achieving a level of revenues adequate to support our
cost structure. The accompanying financial statements have been prepared assuming that the Company will continue as a going concern.

We
believe that our current cash balances, combined with net cash that we expect to generate from operations, will sustain our ongoing operations for at least twelve months. In the event that we require additional cash to support our operations during
the next twelve months, we will attempt to raise the required capital through either debt or equity arrangements. We cannot provide any assurance that the required capital will be available on acceptable terms, if at all, or that any financing
activity will not be dilutive to our current stockholders. If we are not able to raise additional funds, we may be required to significantly curtail our operations and this would have an adverse effect on our financial position, results of
operations and cash flows.

We had no material commitments for capital expenditures as of March 31, 2003.

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Income Taxes

As of December 31, 2002, the Company has
research and experimentation credit carry forwards for federal and state purposes of approximately $2,613 and $1,123 respectively. These credits begin to expire in 2006 for federal and state purposes. The Company also has approximately $124,716 and
$72,742 of federal and state net operating loss carry forwards which will begin to expire in 2004 and 2006, respectively. The utilization of net operating loss and tax credit carry forwards may be significantly and materially limited under the
provisions of Internal Revenue Code Sections 382 and 1503 and similar state provisions.

Critical Accounting Policies

Our discussion and analysis of our financial condition and results of operations are based upon our consolidated financial statements, which have been prepared in
accordance with accounting principles generally accepted in the United States. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amount of assets and liabilities and disclosure of
contingent assets and liabilities at the date of the financial statements and the reported amount of revenue and expenses for each period.

The following represents a summary of our critical accounting policies, defined as those policies that we believe are: (a) the most important to the portrayal of our
financial condition and results of operations, and (b) that require our most difficult, subjective or complex judgments, often as a result of the need to make estimates about the effects of matters that are inherently uncertain.

Valuation of Accounts Receivable

We maintain an allowance for uncollectible accounts receivable to estimate the risk of extending credit to customers. The allowance is estimated based on customer
compliance with credit terms, the financial condition of the customer and collection history, where applicable. Additional allowances could be required if the financial condition of our customers were to be impaired beyond our estimates.

Valuation of Inventory

Inventory is valued at the lower of cost (estimated using the first-in, first-out method) or market. We periodically evaluate the carrying value of inventories and
maintain an allowance for obsolescence to adjust the carrying value, as necessary, to the lower of cost or market. The allowance is based on physical and technical functionality as well as other factors affecting the recoverability of the asset
through future sales. Unfavorable changes in estimates of obsolete inventory would result in an increase in the allowance and a decrease in gross profit.

Goodwill and Other Intangibles

In
accordance with SFAS No. 142, Goodwill and Other Intangible Assets, which became effective January 1, 2002, goodwill and other intangible assets with indeterminate lives are no longer subject to amortization but are tested for impairment
annually or whenever events or changes in circumstances indicate that the asset might be impaired. Other intangible assets with finite lives continue to be subject to amortization, and any impairment is determined in accordance with SFAS No. 144,
Accounting for the Impairment or Disposal of Long-Lived Assets.

Should an impairment in goodwill be determined, it could
result in a material charge to operations.

Valuation of Long-Lived Assets

In accordance with SFAS No. 144, long-lived assets and intangible assets with determinate lives are reviewed for impairment whenever events or changes in
circumstances indicate that the carrying amount of an asset may not be recoverable. The Company evaluates potential impairment by comparing the carrying amount of the asset with the estimated undiscounted future cash flows associated with the use of
the asset and its eventual disposition. Should the review indicate that the asset is not recoverable, the Companys carrying value of the asset would be

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reduced to its estimated fair value, which is generally measured by future discounted cash flows. In our estimate, no provision for impairment is currently required on any of
our long-lived assets.

Revenue Recognition

We record revenue in accordance with SEC Staff Accounting Bulletin No. 101, Revenue Recognition in Financial Statements (SAB 101), as amended. Product sales are
recognized when there is persuasive evidence of an arrangement which states a fixed and determinable price and terms, delivery of the product has occurred in accordance with the terms of the sale, and collectibility of the sale is reasonably
assured. Some of the Companys customers are distributors which sell goods to third party end users. The Company is not contractually obligated to repurchase any inventory from distributors or end user customers. License fees are generally
deferred and recognized systematically over the term of the license agreement.

We record sales when we have received a valid customer
purchase order for product at a stated price, the customers credit is approved and we have shipped the product to the customer.

Product Warranty

Products sold are
generally covered by a warranty against defects in material and workmanship for a period of one to five years. We accrue a warranty reserve to estimate the risk of incurring costs to provide warranty services. The accrual is based on our historical
experience and our expectation of future conditions. An increase in warranty claims or in the costs associated with servicing those claims would result in an increase in the accrual and a decrease in gross profit.

Discontinued Operations

SFAS No. 144
establishes accounting and reporting standards requiring that long-lived assets to be disposed of be reported as discontinued operations if management has committed to a plan to dispose of the assets under usual and customary terms within one year
of establishing the plan.  The acquisition and initiation of disposal of our MCS gas business occurred prior to the effective date of SFAS No. 144, therefore, we accounted for the planned disposal using the guidance of EITF 87-11, Allocation of
Purchase Price to Assets to Be Sold, and then followed the guidance of EITF 90-6, Accounting for Certain Events Not Addressed in Issue No. 87-11 Related To an Acquired Operating Unit To Be Sold for the period subsequent to the initial one-year
period and classified operations of this business as discontinued operations.

Litigation and Others Contingencies

We regularly evaluate our exposure to threatened or pending litigation and other business contingencies. Because of the
uncertainties related to the amount of loss from litigation and other business contingencies, the recording of losses relating to such exposures requires significant judgment about the potential range of outcomes. We are not presently affected by
any litigation or other contingencies that have had, or are currently anticipated to have, a material impact on our results of operations or financial position. As additional information about current or future litigation or other contingencies
becomes available, we will assess whether such information warrants the recording of additional expense relating to these contingencies. To be recorded as expense, a loss contingency must generally be both probable and measurable. If a loss
contingency is material but is not both probable and estimable, we will disclose it in notes to the financial statements.

Recent Accounting Pronouncements

In June 2002, the Financial Accounting Standards Board (FASB) issued SFAS No. 146 (SFAS No. 146), Accounting for Exit or Disposal Activities.
SFAS No. 146 is effective for exit or disposal activities that are initiated after December 31, 2002. SFAS No. 146 addresses significant issues regarding the recognition, measurement, and reporting of costs that are associated with exit and disposal
activities, including restructuring activities that are currently accounted for pursuant to the guidance that the Emerging Issues Task Force (EITF) has set forth in EITF Issue No. 94-3, Liability Recognition for Certain Employee Termination
Benefits and Other Costs

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to Exit an Activity (including Certain Costs Incurred in a Restructuring). The scope of SFAS No. 146 also includes (1) costs related to terminating a contract that
is not a capital lease, and (2) termination benefits that employees who are involuntarily terminated receive under the terms of a one-time benefit arrangement that is not an ongoing benefit arrangement or an individual deferred-compensation
contract. Our adoption of  SFAS No. 146 had an impact on our accounting for our corporate restructuring and relocation (see Note 6 of the consolidated financial statements).

In November 2002, the FASB issued Interpretation No. 45 (FIN 45), Guarantors Accounting and Disclosure Requirements for Guarantees, Including Indirect
Guarantees Of Indebtedness Of Others, an Interpretation of FASB Statements No. 5, 57, and 107 and Rescission of FASB Interpretation No. 34. FIN 45 relates to the accounting for and disclosure of guarantees and addresses (1) an obligation to
stand ready to perform over the term of the guarantee in the event that the specified triggering events or conditions occur and (2) a contingent obligation to make future payments if those triggering events or conditions occur. FIN 45 excludes
certain types of guarantees from its initial recognition and measurement, including guarantees accounted for as derivative instruments and hedging activities, guarantees relating to performance of non-financial assets that are owned by the
guaranteed party (e.g., product warranties), guarantees issued in a business combination that represents contingent consideration, and others. They are subject to its disclosure requirements. The disclosure requirements are effective for financial
statements of interim and annual periods ending after December 15, 2002. The initial recognition and initial measurement provisions should be applied only on a prospective basis to guarantees issued or modified after December 31, 2002. The
guarantors previous accounting for guarantees issued prior to the initial application date of FIN 45 should not be revised or restated to reflect the effect of the new recognition and measurement provisions. We do not believe that the adoption
of FIN 45 will have a material impact on our consolidated financial statements.

EITF Consensus Issue No. 00-21 (Issue
00-21), Revenue Arrangements with Multiple Deliverables was first discussed at the July 2000 EITF meeting and is expected to be finalized at the March 2003 meeting. It addresses the accounting for multiple element revenue
arrangements, which involve more than one deliverable or unit of accounting in circumstances, where the delivery of those units takes place in different accounting periods. Issue 00-21 requires disclosure of the accounting policy for revenue
recognition of multiple element revenue arrangements and the nature and description of such arrangements. It will be effective for revenue arrangements entered into in fiscal periods beginning after June 15, 2003. We do not expect that the adoption
of Issue 00-21 will have a significant impact on our consolidated financial statements.

|ITEM 3. | QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
|------- | ----------------------------------------------------------

Interest Rate and Market Risk.    We do not use derivative financial instruments in our investment portfolio. We are averse to principal
loss and try to ensure the safety and preservation of our invested funds by limiting default risk, market risk, and reinvestment risk. We attempt to mitigate default risk by investing in only the safest and highest credit quality securities. At
March 31, 2003, we invested our available cash in money market securities of high credit quality financial institutions.

Interest
expense on our existing long-term debt commitments is based on a fixed interest rate and therefore it is unaffected by fluctuations in interest rates.

Foreign Currency Exchange Rate RiskThe international sales of the companys products, are made through the companys
international sales offices in Copenhagen in foreign currencies, and thus may be adversely affected by fluctuations in currency exchange rates. Additionally, fluctuations in currency exchange rates may adversely affect foreign demand for the
companys products by increasing the price of the companys products in the currency of the countries in which the products are sold. Our operations outside of the United States are maintained in their local currency. All assets and
liabilities of our international subsidiaries are translated to U.S. dollars at period-end exchange rates and income and expenses are translated using monthly average exchange rates.  Translation adjustments arising from the use of differing
exchange rates are included in accumulated other comprehensive income in stockholders equity. Gains and losses on foreign currency transactions are included in operations and were not material in any period.

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|ITEM 4. | CONTROLS AND PROCEDURES
|------- | -----------------------

Evaluation of disclosure controls and procedures.We maintain disclosure controls and procedures that are designed to ensure that information required to
be disclosed in our Exchange Act reports is recorded, processed, summarized and reported within the time periods specified in the SECs rules and forms, and that such information is accumulated and communicated to our management including our
Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure based closely on the definition of disclosure controls and procedures in Rule 13a-14(c).  In designing and
evaluating the disclosure controls and procedures, we recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management
necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

Within 90 days prior to the date of this report, we carried out an evaluation, under the supervision and with the participation of our management, including our Chief
Executive Officer and Chief Financial Officer, of the effectiveness of our disclosure controls and procedures.  Based on that evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that as of the date of the
evaluation, our disclosure controls and procedures were adequate to timely alert them of material information to be included in our periodic SEC filings.

Changes in internal controls.There were no significant changes in our internal controls, or to our knowledge, in other factors that could significantly
affect our disclosure controls and procedures subsequent to the date of our most recent evaluation.

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CARDIAC SCIENCE, INC.

PART II.   OTHER INFORMATION

|Item 1. | Legal Proceedings                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|        | On December 3, 2002, the Company filed a complaint in Orange County Superior Court against Medical Research Laboratories, Inc. (MRL) alleging declaratory
relief and breach of contract arising out of a July 29, 2002 letter of intent entered into between the parties. The Company alleges MRL failed to comply with certain conditions of closing set forth in the letter of intent whereby the Company would
acquire all of MRLs stock. As a result of MRLs failure to comply with the closing requirements, the Company seeks damages in excess of $3 million. MRL filed a cross-complaint, also seeking breach of contract and declaratory relief
arising out of the same letter of intent. Thereafter, the case was removed to the United States District Court for the Central District of California. MRL has filed a motion to change venue to the Northern District of Illinois, which is pending. MRL
contends that the Company breached the letter of intent and seeks damages in excess of $5 million. The Company believes that the allegations against it are without merit, and the Company intends to vigorously defend against MRLs claims. At
this stage, the Company is unable to predict the outcome of this litigation or its ultimate effect, if any, on its financial condition.
|        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|        | In February 2003, we announced that we filed patent infringement action against Philips Medical Systems North America, Inc. (Philips), Philips Electronics
North America Corporation and Koninklijke Philips Electronics N.V. in the United States District Court for Minnesota. Our suit charges that Philips automated external defibrillators sold under the names HeartStart OnSite
Defibrillator and HeartStart Home Defibrillator infringe at least seven of our United States patents. The Philips HeartStart Home Defibrillator, which was recently cleared by the U.S. Food and Drug Administration
(FDA) for marketing in the United States, is promoted by Philips as including, among other things, pre-connected disposable defibrillation electrodes and daily self-testing of electrodes and battery, features that our suit alleges are
key competitive advantages of our Powerheart AED and are covered under our patents.  At this stage, the Company is unable to predict the outcome of this litigation or its ultimate effect, if any, on its financial condition.                                                                                                                                                                                                             
|        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|        | In the ordinary course of business, various lawsuits and claims are filed against the Company. While the outcome of these matters is currently not determinable,
management believes that the ultimate resolution of these matters will not have a material adverse effect on the Companys operations or financial position.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Item 6. | Exhibits and Reports on Form 8-K                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|        | a)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
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|        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|        | b)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
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SIGNATURES

Pursuant to the requirements of the Securities Exchange
Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

|                    | CARDIAC SCIENCE, INC.                                                 
|------------------- | ----------------------------------------------------------------------
|                    |                                                                       
|Date:  May 14, 2003 | /s/ RODERICK DE GREEF                                                 
|                    |                                                                       
|                    | Roderick de Greef (Authorized Officer and Principal Financial Officer)

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CERTIFICATIONS

|I, Raymond Cohen, Chief Executive Officer of Cardiac Science, Inc. (the registrant), certify that:
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|Date:  May 14, 2003                                                                                 
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CERTIFICATIONS

|I, Roderick de Greef, Chief Financial Officer of Cardiac Science, Inc. (the registrant), certify that:
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|Date:  May 14, 2003                                                                                     
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