If an AED indicates a shock is advised for a patient in cardiac arrest, what should you do if bystander CPR was not in progress?

When an Automated External Defibrillator (AED) advises a shock for a patient in cardiac arrest, it is crucial to follow the appropriate protocol to maximize the chances of survival. Delivering the shock as indicated, followed immediately by CPR, is the correct course of action.

This procedure is grounded in the understanding that effective defibrillation can restore a normal heart rhythm; however, for the patient to maintain circulation and oxygenation, CPR needs to be performed immediately after the shock. CPR helps to improve blood flow to vital organs until the AED can deliver a shock and potentially restart the heart's normal rhythm. The combination of defibrillation and high-quality CPR increases the likelihood of a successful resuscitation.

Performing CPR for 2 minutes before defibrillation, while well-intentioned, delays the delivery of a critical intervention that could correct life-threatening arrhythmias. Immediate action is paramount in a cardiac arrest scenario.

Immediate transport of the AED or communication with medical control to cease resuscitation would also not align with the established protocols for managing cardiac arrest, as both actions would unnecessarily delay the needed treatment for the patient. Therefore, the recommended approach of administering the shock and then immediately following it with CPR is the best practice in this situation