What is the priority action during the first few minutes of a cardiac arrest event?

Starting chest compressions is critical in the first few minutes of a cardiac arrest event because it provides essential blood flow to vital organs, particularly the brain and heart. High-quality chest compressions are the backbone of cardiopulmonary resuscitation (CPR) and directly contribute to a patient's chance of survival and favorable neurological outcomes after cardiac arrest.

When someone experiences cardiac arrest, the heart ceases to effectively pump blood, leading to a loss of consciousness and pulse. Initiating chest compressions immediately helps maintain circulation, delaying the onset of irreversible brain damage and increasing the likelihood of successful defibrillation when it occurs.

While calling for help, defibrillation, and administering medications are important actions in the overall resuscitation process, they should occur after or concurrently with chest compressions, as early compressions are critical for sustaining blood flow until advanced interventions can be applied. Prioritizing chest compressions ensures that the patient receives the best chance of survival in those crucial first moments of cardiac arrest.