How often should rescuers switch roles during continuous CPR for adults?

Switching roles every 2 minutes during continuous CPR for adults is a key practice to ensure high-quality compressions are maintained. This interval allows the rescuers to manage fatigue effectively, which can compromise the effectiveness of CPR over time. When rescuers do not alternate frequently enough, one person may become tired, leading to a decrease in the force of compressions or a break in rhythm, both of which can negatively impact the victim's chances of survival.

In this context, adherence to the 2-minute guideline aligns with recommendations from organizations such as the American Heart Association (AHA). This standard helps to sustain a high-quality chest compression rate of 100-120 compressions per minute, which is crucial for optimal blood circulation during cardiac arrest. Recognizing when to switch roles ensures that rescuers remain alert and engaged, maintaining the efficacy of the resuscitation effort.