During a cardiac arrest, compressors should switch at minimum every ___ minutes?

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Study for the Massachusetts OEMS BLS Test. Gain confidence with multiple-choice questions and detailed explanations. Prepare effectively for your exam!

Multiple Choice

During a cardiac arrest, compressors should switch at minimum every ___ minutes?

Explanation:
Switching the person doing chest compressions every two minutes keeps CPR performance up. Fatigue rapidly reduces compression depth and rate, which lowers blood flow to the heart and brain. By rotating at least every two minutes, you maintain effective depth and rate and minimize interruptions during the change. In practice, two rescuers coordinate so one continues compressions while the other takes over, swapping with as little pause as possible. If you notice a drop in depth, rate, or chest recoil, switch sooner to keep perfusion adequate.

Switching the person doing chest compressions every two minutes keeps CPR performance up. Fatigue rapidly reduces compression depth and rate, which lowers blood flow to the heart and brain. By rotating at least every two minutes, you maintain effective depth and rate and minimize interruptions during the change. In practice, two rescuers coordinate so one continues compressions while the other takes over, swapping with as little pause as possible. If you notice a drop in depth, rate, or chest recoil, switch sooner to keep perfusion adequate.

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