During CPR, how often should rescuers switch places?

During CPR, rescuers should switch places approximately every 2 minutes to ensure that high-quality compressions are consistently maintained. This is crucial because performing CPR is physically demanding, and fatigue can lead to a decrease in the effectiveness of chest compressions. If rescuers become tired, their compressions may become slower and less forceful, which can adversely affect blood circulation to vital organs. By switching every 2 minutes, rescuers can maintain energy levels and ensure that the compressions continue at the recommended rate of 100 to 120 compressions per minute, which is essential for providing adequate blood flow during a cardiac arrest situation. This approach is recommended by resuscitation guidelines to optimize the outcomes of CPR efforts.