During two-rescuer CPR, how often should rescuers switch roles?

In two-rescuer CPR, it is recommended to switch roles approximately every 2 minutes. This practice helps maintain high-quality compressions. Over time, fatigue can set in for the rescuer performing chest compressions, potentially leading to decreased effectiveness in their technique. By rotating every 2 minutes, both rescuers can maintain optimal performance, ensuring consistent and effective compressions.

Switching roles is essential because high-quality chest compressions involve proper technique, depth, and rate. If one rescuer becomes fatigued, their ability to deliver effective compressions may diminish, which can negatively impact the victim's chances of survival. Therefore, the two-minute interval acts as a guideline to help maintain the highest standard of care during CPR, allowing each rescuer to perform at their best while ensuring the continuous flow of compressions.