How frequently should rescuers switch roles when providing CPR compressions?

Switching roles every 2 minutes during CPR is based on the principle of minimizing fatigue among rescuers while maximizing the effectiveness of chest compressions. When rescuers perform compressions for an extended period, their strength and technique can deteriorate, which can lead to less effective compressions that are critical for maintaining blood flow to vital organs.

By changing roles every 2 minutes, rescuers can ensure that compressions remain strong and consistent. This practice aligns with guidelines from organizations such as the American Heart Association, which emphasizes the importance of high-quality CPR with adequate rate and depth of compressions. Frequent role changes help maintain optimal performance and reduce the likelihood of rescuer fatigue, ensuring that cardiac output remains as effective as possible during the resuscitation effort.

Therefore, the recommendation of every 2 minutes maximizes the quality of CPR provided to the patient.