How often should rescuers switch roles during CPR?

Rescuers should switch roles during CPR approximately every 2 minutes. This interval is based on the understanding that high-quality CPR can be physically demanding, leading to fatigue. When rescuers become fatigued, the quality of chest compressions may decrease, which can compromise the effectiveness of resuscitation efforts. By rotating rescuers every 2 minutes, it allows each individual to maintain optimum performance during compressions while the other takes a brief recovery period. This practice is supported by guidelines from organizations like the American Heart Association, which emphasize the importance of minimizing interruptions in compressions and ensuring that every rescuer maintains high-quality CPR throughout the procedure. Additionally, frequent role changes can help keep rescuers alert and engaged in the resuscitation efforts.