What is the recommended CPR compression rate and depth for adults?

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Multiple Choice

What is the recommended CPR compression rate and depth for adults?

Explanation:
The key idea is delivering chest compressions at a pace and depth that reliably circulates blood. For adults, aim for a rate of 100–120 compressions per minute and a depth of about 2 inches (5 cm), generally up to 2.4–2.5 inches (6 cm) if it can be done safely, with full chest recoil between pushes. This combination maximizes blood flow during CPR without causing excessive injury. The other options miss this balance: one is too slow and too shallow, reducing perfusion; another is too fast and too deep, risking injury; and another is a rate that's below the recommended range with insufficient depth.

The key idea is delivering chest compressions at a pace and depth that reliably circulates blood. For adults, aim for a rate of 100–120 compressions per minute and a depth of about 2 inches (5 cm), generally up to 2.4–2.5 inches (6 cm) if it can be done safely, with full chest recoil between pushes. This combination maximizes blood flow during CPR without causing excessive injury.

The other options miss this balance: one is too slow and too shallow, reducing perfusion; another is too fast and too deep, risking injury; and another is a rate that's below the recommended range with insufficient depth.

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