How often should rescuers switch roles when performing adult CPR?

In adult CPR, it is essential for rescuers to switch roles frequently to maintain high-quality chest compressions while minimizing fatigue. The recommended practice is to exchange rescuers every 5 cycles of compressions, which amounts to about every 5 minutes. However, if a rescuer starts to feel fatigued or notices a decline in the quality of compressions before reaching that number, they should switch roles sooner. This allows for sustained effectiveness in delivering compressions, which are vital for maintaining blood circulation during cardiac arrest. Switching rescuer roles helps ensure that the compressions remain effective and consistent, which can significantly impact the patient's chances of survival.