What is the maximum interval for a delay in switching CPR rescuers to avoid fatigue?

The correct answer indicates that a maximum interval of 2 minutes is ideal for delaying the switch between CPR rescuers. This timeframe is based on the understanding that high-quality CPR is critical in resuscitation scenarios.

When rescuers perform chest compressions, fatigue can set in quickly, leading to reduced effectiveness and potentially compromising the patient's chances of survival. Studies have shown that chest compressions should ideally be performed at a rate of 100 to 120 compressions per minute, with a depth of at least 2 inches for adults. Extended performance beyond 2 minutes without switching can lead to fatigue, resulting in slower compressions, decreased depth, and an overall reduction in the quality of CPR being delivered.

Therefore, switching rescuers every 2 minutes ensures that the CPR remains effective and continuous while minimizing the risk of fatigue affecting the performance. This approach aligns with the recommendations made by resuscitation guidelines, which emphasize the significance of maintaining high-quality compressions throughout the duration of resuscitation efforts.