What is the centimeter equivalent of the recommended two-inch chest compression depth for adult CPR?

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Multiple Choice

What is the centimeter equivalent of the recommended two-inch chest compression depth for adult CPR?

The depth used in adult CPR is at least 2 inches, which is about 5 cm. To convert, multiply inches by 2.54 cm per inch: 2 × 2.54 ≈ 5.08 cm, typically rounded to 5 cm. So the centimeter equivalent is 5 cm. This depth helps generate enough blood flow during compressions; shallower depths reduce perfusion, while depths well beyond the guideline increase the risk of injury. The other options are too shallow or exceed the typical recommended range.

The depth used in adult CPR is at least 2 inches, which is about 5 cm. To convert, multiply inches by 2.54 cm per inch: 2 × 2.54 ≈ 5.08 cm, typically rounded to 5 cm. So the centimeter equivalent is 5 cm. This depth helps generate enough blood flow during compressions; shallower depths reduce perfusion, while depths well beyond the guideline increase the risk of injury. The other options are too shallow or exceed the typical recommended range.

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