How often should rescuers switch roles during CPR to maintain performance?

Switching roles during CPR is essential to maintaining high-quality chest compressions and ensuring that rescuer fatigue does not compromise the effectiveness of the life-saving procedure. The recommended practice is to switch roles every 2 minutes or after completing 5 cycles of CPR, particularly when rescuers are performing compressions. This timeframe allows each rescuer enough time to deliver effective compressions without becoming overly fatigued, which can decrease the force and frequency of compressions, ultimately affecting the patient's chances of survival.

Roles should be rotated to ensure that one rescuer is not overly strained while the other is resting, thereby keeping the compression rate effective (at least 100-120 compressions per minute). This habit of regular switching is part of effective team dynamics during a resuscitation effort, which is crucial in emergency situations. By adhering to this guideline, the overall quality of CPR can be optimized, improving the likelihood of a positive outcome for the patient.