Post-Cardiac Arrest Care

Initial Interventions

The American Heart Association recommends optimizing oxygenation and ventilation with controlled oxygen titration and avoidance of hyperventilation, securing hemodynamic stability by targeting mean arterial pressure ≥65 mmHg, and obtaining a 12-lead ECG immediately to identify ST-elevation myocardial infarction requiring emergent coronary intervention 1, 2
Secure or verify advanced airway placement using endotracheal intubation or supraglottic airway if not already established, confirming placement with waveform capnography 1, 3, 4
Titrate inspired oxygen to achieve arterial oxygen saturation of 92-98% and avoid both hypoxia and hyperoxia 1, 5, 2
Avoid hyperventilation by ventilating at 10-12 breaths per minute targeting PETCO₂ of 35-40 mmHg or PaCO₂ of 40-45 mmHg 1, 6, 7

Target mean arterial pressure ≥65 mmHg, preferably >80 mmHg to optimize cerebral and end-organ perfusion 2
Administer judicious intravenous fluids to correct hypovolemia if present 1
Initiate vasopressor support as needed to maintain blood pressure targets 2

Obtain 12-lead ECG immediately to detect ST-elevation or new left bundle-branch block 1, 2
Review H's and T's to identify reversible causes: hypovolemia, hypoxia, hydrogen ion (acidosis), hypo/hyperkalemia, hypothermia, toxins, tamponade, tension pneumothorax, thrombosis (coronary or pulmonary) 1, 3, 8

Consider targeted temperature management (32-36°C) for patients who remain comatose and cannot follow verbal commands 1, 5
Transport to a facility capable of providing comprehensive post-cardiac arrest care including therapeutic hypothermia and coronary reperfusion 1
The evidence strongly supports this algorithmic approach, with the 2020 American Heart Association guidelines providing the most current framework 3, 9, 8, 1, 6