When performing CPR on an adult, how often should you switch rescuers?

Switching rescuers every 2 minutes during CPR is based on the need to maintain high-quality compressions and minimize fatigue among rescuers. CPR is physically demanding, and rescuers will begin to tire quickly, which can lead to a decrease in the quality of chest compressions.

By changing rescuers every 2 minutes, it helps ensure that both rescuers remain effective and can provide continuous, strong compressions without compromising the technique and effectiveness of the life-saving efforts. This interval aligns with the recommended guidelines set forth by organizations such as the American Heart Association and the European Resuscitation Council, which emphasize maintaining high-quality CPR as vital for increasing the chances of survival. In contrast, longer intervals could lead to ineffective compressions as rescuers tire, while too frequent changes might disrupt the rhythm and effectiveness of the process.