How often should rescuers switch roles during CPR to minimize fatigue?

The most effective practice for switching roles during CPR is every two minutes. This timing helps to ensure that rescuers can maintain a high quality of compressions while minimizing fatigue. Continuous compressions are critical in providing effective cardiopulmonary resuscitation, and fatigue can lead to a decrease in the strength and effectiveness of the compressions.

By changing roles every two minutes, rescuers can help maintain optimal chest compression rates and depths, as well as provide necessary oxygenation to the victim. It also allows each rescuer a brief period to recover before resuming the compressions, contributing to sustained effectiveness over the duration of the resuscitation efforts. This practice aligns with guidelines established by organizations such as the American Heart Association, emphasizing the importance of effective team dynamics and fatigue management in emergency situations.