What is the recommended depth of chest compressions for adults during CPR?

What is the recommended depth of chest compressions for adults during CPR?

• A. About 1 inch (2.5 cm).
• B. About 3 inches (7.5 cm).
• C. About 4 inches (10 cm).
• D. About 2 inches (5 cm).

Answer: (D)

For adults, chest compressions should be about 2 inches (5 cm) deep. This depth provides enough force to generate forward blood flow with each squeeze, helping to circulate oxygen-rich blood to the heart and brain during CPR. Compressing only about an inch or so doesn’t create enough pressure to move blood effectively, which reduces the chances of preserving vital organs. Pressing as deep as four inches increases the risk of injury to ribs, the sternum, or internal organs and isn’t recommended in standard CPR. So the best balance is around 2 inches (5 cm), aiming for a depth in roughly the 2–2.4 inch (5–6 cm) range when possible, while ensuring you allow full chest recoil between compressions and maintain the proper rate.

For adults, chest compressions should be about 2 inches (5 cm) deep. This depth provides enough force to generate forward blood flow with each squeeze, helping to circulate oxygen-rich blood to the heart and brain during CPR. Compressing only about an inch or so doesn’t create enough pressure to move blood effectively, which reduces the chances of preserving vital organs. Pressing as deep as four inches increases the risk of injury to ribs, the sternum, or internal organs and isn’t recommended in standard CPR. So the best balance is around 2 inches (5 cm), aiming for a depth in roughly the 2–2.4 inch (5–6 cm) range when possible, while ensuring you allow full chest recoil between compressions and maintain the proper rate.