Exhibit 11

HemaCare Corporation        Basic and Diluted Net (Loss) Income per Share

|                                                                                                |  | Years ended December 31,
|----------------------------------------------------------------------------------------------- |  | ------------------------
|
|BASIC                                                                                           |  |                         
|Weighted average common shares used to compute basic earnings per share                         |  |                         
|                                                                                                |  |                         
|Net (loss) incomecontinuing operations                                                         |  | $                       
|                                                                                                |  |                         
|Basic net (loss) income per sharecontinuing operations                                         |  | $                       
|                                                                                                |  |                         
|Net (loss) incomediscontinued operations                                                       |  | $                       
|                                                                                                |  |                         
|Basic net (loss) income per sharediscontinued operations                                       |  | $                       
|                                                                                                |  |                         
|Total net (loss) income                                                                         |  | $                       
|                                                                                                |  |                         
|Total basic net (loss) income per share                                                         |  | $                       
|                                                                                                |  |                         
|DILUTED                                                                                         |  |                         
|Weighted average common shares used to compute basic earnings per share                         |  |                         
|Dilutive common equivalent shares attributable to stock options (based on average market price) |  |                         
|                                                                                                |  |                         
|Weighted average common shares and equivalents used to compute diluted earnings per share       |  |                         
|                                                                                                |  |                         
|Net (loss) incomecontinuing operations                                                         |  | $                       
|                                                                                                |  |                         
|Diluted net (loss) income per sharecontinuing operations                                       |  | $                       
|                                                                                                |  |                         
|Net (loss) incomediscontinued operations                                                       |  | $                       
|                                                                                                |  |                         
|Diluted net (loss) income per sharediscontinued operations                                     |  | $                       
|                                                                                                |  |                         
|Total net (loss) income                                                                         |  | $                       
|                                                                                                |  |                         
|Total diluted net (loss) income per share                                                       |  | $                       
|                                                                                                |  |                         

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