How long should CPR be performed before re-evaluating the rhythm in a cardiac arrest patient?

In the context of cardiac arrest management, CPR should be performed continuously for a duration of about 2 minutes before rhythm reevaluation. This timeframe is crucial because it allows enough time for chest compressions to adequately circulate oxygenated blood to vital organs, increasing the chances of a successful resuscitation.

Research and guidelines from organizations like the American Heart Association emphasize that after completing approximately 2 minutes of high-quality CPR, it is appropriate to reassess the patient’s rhythm using an electrocardiogram monitor. This helps determine if defibrillation is necessary or if other advanced interventions are appropriate.

Performing CPR for this optimal time ensures that rescuers are adhering to the principles of minimizing interruptions during chest compressions while also ensuring timely assessment of the cardiac rhythm to guide further treatment.