When should a rescuer switch with another rescuer during CPR?

Switching rescuers during CPR is essential to maintain the quality of chest compressions and reduce fatigue. It is recommended that rescuers switch every 2 minutes. This time frame allows each person to sustain a high level of effectiveness in their compressions, ensuring they maintain the proper depth and rate. When fatigued, compressions may become less effective, which can impact the overall success of resuscitation efforts.

This practice is aligned with guidelines, as exertion can significantly impair a rescuer's performance. By switching every 2 minutes, each rescuer can perform at their best, ensuring that compressions remain consistent, and thereby improving the chance of a favorable outcome for the patient.