How often should rescuers switch compressors during high-quality CPR?

How often should rescuers switch compressors during high-quality CPR?

• A. Every 1 minute
• B. Every 2 minutes
• C. Every 5 minutes
• D. Only when fatigued

Answer: (B)

Maintaining effective CPR means keeping chest compressions deep and fast, and fatigue makes that harder over time. Switching the person doing compressions every about two minutes helps keep the quality up, because the rescuer’s strength and technique tend to wane after a short period. By rotating roughly every two minutes, you’re more likely to maintain the recommended rate and depth (about 100–120 compressions per minute and a depth around 2 inches in adults) with full chest recoil. Waiting longer than two minutes risks a drop in compression quality, while switching more often isn’t necessary and can interrupt the rhythm. So, rotating every two minutes best preserves perfusion during high-quality CPR.

Maintaining effective CPR means keeping chest compressions deep and fast, and fatigue makes that harder over time. Switching the person doing compressions every about two minutes helps keep the quality up, because the rescuer’s strength and technique tend to wane after a short period. By rotating roughly every two minutes, you’re more likely to maintain the recommended rate and depth (about 100–120 compressions per minute and a depth around 2 inches in adults) with full chest recoil.

Waiting longer than two minutes risks a drop in compression quality, while switching more often isn’t necessary and can interrupt the rhythm. So, rotating every two minutes best preserves perfusion during high-quality CPR.