Please select the eligibility criteria that correspond to the clinical trial below.
Title: Carbon Dioxide, Oxygen and Mean Arterial Pressure After Cardiac Arrest and Resuscitation - Targeting High vs. Low Normal Values
Brief Summary: The COMACARE trial is a pilot multicenter randomized trial to assess the feasibility and effect on brain injury markers of targeting low or high normal arterial oxygen tension (PaO2), arterial carbon dioxide tension (PaCO2) and mean arterial pressure (MAP) in comatose, mechanically ventilated patients after out-of-hospital cardiac arrest. Using factorial design, participants are randomized at admission to intensive care unit to one of eight groups targeting either low or high normal values of PaO2, PaCO2 and MAP for 36 h. In this way, investigators will be assessing the feasibility and effect of all three variables at the same time.

The primary outcome is serum concentration of neuron-specific enolase (NSE) at 48 h after cardiac arrest. Feasibility outcome is between-group separation in PaO2, PaCO2 and MAP levels. Secondary outcomes include continuous monitoring of cerebral oxygenation, EEG and ECG for 48 h, the levels of NSE, S100B and cardiac troponin at randomization and 24, 48 and 72 h after cardiac arrest and neurological assessment at 6 months after cardiac arrest.


Options:
A: Inclusion Criteria:

* Adults ≥ 18 years of age.
* Chest pain for \< 12 hours
* ST-elevation Myocardial Infarction including either: 1) Persistent ST-segment elevation of ≥1mm in two contiguous limb leads; 2) ST-segment elevation of ≥ 2mm in two contiguous chest leads, or; 3) New left bundle branch block (LBBB) pattern.
* Able to be transported to a participating hospital

Exclusion Criteria:

* Hypoxia with oxygen saturation measured on pulse oximeter \< 94% with the patient breathing air
* Bronchospasm requiring nebulised salbutamol therapy using oxygen
* Altered conscious state
B: Inclusion Criteria:

* patients with less than 6 hours septic shock according criteria of Bone
* minimal dose of catecholamines at least 0.1 µg/Kg/min
* patient with mechanical ventilation
* written informed consent

Exclusion Criteria:

* age \< 18 years
* pregnancy
* participation in other trial with the same endpoint
* moribund
* absence of registration in french health care system
* patient protected by law
* hypernatremia \< 130 mmol/l ou \> 145 mmol/l
* patient with P/F \< 100 mm Hg with PEEP \> 5 cms of water
* intracranial hypertension
* patient admitted for cardiac arrest
* overt cardiac failure
C: Inclusion Criteria:

* Witnessed out-of-hospital cardiac arrest with ventricular fibrillation (VF) or ventricular tachycardia (VT) as the initial rhythm
* Delay of return of spontaneous circulation (ROSC) 10-45 min from the start of the arrest
* Confirmed or suspected cardiac origin
* Mechanical ventilation
* Markedly impaired level of consciousness (no response to verbal commands and Glasgow coma scale \[GCS\] motor score \< 5)
* Deferred consent possible or likely
* Active intensive care initiated, including targeted temperature management (33-36 C)

Exclusion Criteria:

* Probable withdrawal of active ICU care due to terminal illness or poor prognosis because of severely reduced functional status before cardiac arrest
* Confirmed or suspected intracranial pathology and/or suspicion of raised intracranial pressure
* Pregnancy
* Severe oxygenation problem (PaO2 / FiO2 \< 100 mmHg)
* Severe COPD
D: Inclusion Criteria:

* Stable angina or NST-ACS undergoing PCI

Exclusion Criteria:

* Blood oxygen \<95%
* Cognitive dysfunction
* STEMI
* Intubation

Answer: C