How often should the rescuer switch compression duties during CPR?

The recommended practice is to switch compression duties every 2 minutes during CPR. This is based on the understanding that high-quality chest compressions are crucial for effective cardiopulmonary resuscitation and that fatigue can significantly impact the effectiveness of these compressions.

When rescuers switch every 2 minutes, it helps ensure that compressions remain effective and consistent in terms of rate and depth. This interval also aligns with the timing of rhythm checks and defibrillation attempts in the resuscitation process, allowing for a structured approach to care during the critical moments of CPR. By adhering to this guideline, rescuers maintain a higher quality of care and can increase the chances of survival for the patient.

Other options, which suggest different intervals, do not align with the best practices established for maintaining high-quality CPR. For instance, switching every minute may not allow enough time to establish an effective rhythm and depth of compressions, while switching every 5 minutes could lead to an increased risk of fatigue and a decline in the quality of compressions during that time.