How often should rescuers monitor for signs of life during CPR?

During CPR, rescuers should monitor for signs of life every 2 minutes. This interval is essential because it allows rescuers to assess the effectiveness of the resuscitation efforts and determine whether the victim is showing any signs of recovery, such as normal breathing or responsiveness.

Monitoring every 2 minutes provides a structured timeframe for checking the pulse and breathing without interrupting the continuous flow of chest compressions for prolonged periods. This is crucial because maintaining high-quality chest compressions is vital to circulate blood and oxygen to vital organs while awaiting professional help or the arrival of an AED (Automated External Defibrillator).

This approach aligns with the guidelines from organizations such as the American Heart Association, emphasizing the importance of ongoing assessment as part of effective CPR. The other options do not provide a balanced or continuous method for checking the patient's status, which could hinder timely care in a critical situation.