Please select the eligibility criteria that correspond to the clinical trial below.
Title: Randomised Controlled Comparison of Continuous Positive Airway Pressure (CPAP) With Standard Treatment in Out-of-hospital Patients With Acute Cardiogenic Pulmonary Edema.
Brief Summary: Evaluate efficacy and safety of CPAP in a randomised standard treatment controlled study, in out-of-hospital patients with acute cardiogenic pulmonary edema.


Options:
A: Inclusion Criteria:

* patient with supposed acute cardiogenic pulmonary edema, defined as acute dyspnea associated with a past of cardiomyopathy ischemia and physical signs consistent with pulmonary edema.
* patient giving written informed consent

Exclusion Criteria:

* Glasgow score \< 10
* Acute myocardial infarction ; ventricular arrhythmia ; pneumothorax ; evidence of pneumonia ; immediate need for intubation ; heart failure or respiratory stop witch requires a reanimation ; cardiogenic shock (systolic blood pressure \< 90 mmhg)
* Any neurological impairment that would prevent the protocol compliance
* participation in another study throughout this one
* women pregnant or nursing
* vomiting
* patient with an history of gastric surgery (\< 8days)
B: Inclusion Criteria:

* Age\>18
* Either A or B

A. Clinical Criteria: Moderate to severe respiratory distress as evidenced by tachypnea, use of accessory muscles for breathing, or abdominal paradox.

B. Blood Gas and Physiologic Criteria: Gas exchange abnormalities including PaCO2\>45 with a pH\<7.35, or a PaO2/FiO2 ratio\<200.

Exclusion Criteria:

* The need for immediate intubation
* Medical instability such as hypotensive shock, uncontrolled cardiac ischemia or arrythmias, unstable myocardial infarction, uncontrolled upper gastrointestinal bleeding
* Agitation or uncooperativeness, unresponsive to small doses of sedatives
* Excretions or inability to protect the airway
* Inability to fit the mask
* Facial trauma
* Upper airway obstruction
C: Inclusion Criteria:

* rapid onset of the symptoms
* severe dyspnoea at rest
* respiratory rate \> 30 breaths per minute
* use of accessory respiratory muscles
* oxygen saturation (SpO2) inferior to 90% with an inspiratory oxygen fraction of 60% via a Venturi mask
* radiological findings of ACPE

Exclusion Criteria:

* acute ischemic heart disease (myocardial infarction, chest pain, ST elevation)
* hemodynamic instability (i.e. systolic blood pressure \< 90 with dopamine or dobutamine infusion ≥ 5 mcgr/Kg/min) or life-threatening arrhythmias
* need for immediate endotracheal intubation (respiratory arrest, bradypnea or gasping)
* inability to protect the airways
* impaired sensorium (i.e. unconsciousness or agitation)
* inability to clear secretions
* respiratory tract infection
* recent oesophageal/gastric surgery
* gastrointestinal bleeding
* facial deformities
* hematological malignancy or cancer with an Eastern Cooperative Oncology Group performance status ≥ 2
* chronic respiratory failure necessitating long-term oxygen therapy
* diagnosis of myocardial infarction, pulmonary embolism, pneumonia, exacerbation of chronic obstructive pulmonary disease, pneumothorax in the previous 3 months
* denial or refusal of intubation
* claustrophobia
* inclusion in other research protocols
D: Inclusion Criteria:

* age \> 18
* acute respiratory insufficiency with hypoxia in air
* KILLIP score from 2 to 4
* absence of known ST elevation acute coronary syndrome
* accepted inform consent.

Exclusion Criteria:

* age \< 18
* immediate intubation criteria (bradypnea, coma status)
* refractory shock

Answer: A