It is recommended that responders change positions, between performing Chest Compressions and Ventilations, every ____________ to maintain quality CPR.

Changing positions every 2 minutes helps to maintain the quality of CPR by ensuring that the responders do not become fatigued. Fatigue can lead to a decrease in the effectiveness of both chest compressions and ventilations, which are critical for maintaining circulation and oxygenation during a cardiac arrest.

The guideline of changing every 2 minutes is based on research indicating that after this duration, the quality of compressions often declines due to the physical exertion required. By rotating responders, it is possible to preserve the vigor and effectiveness of chest compressions and provide optimal care to the patient.

In contrast, other suggested intervals, such as shorter or longer times, could either be too frequent, leading to unnecessary interruptions in compressions, or too infrequent, resulting in reduced effectiveness from fatigue. Therefore, the recommendation to change positions every 2 minutes strikes a balance that supports sustained high-quality resuscitation efforts.