During CPR, what is the compression depth for adults?

The recommended compression depth for adults during CPR is between 2 to 2.4 inches (or approximately 5 to 6 cm). This depth is crucial because it ensures that adequate pressure is applied to the chest, facilitating effective blood circulation to vital organs, especially the brain and heart.

When performing CPR, achieving the correct compression depth allows for the optimal compression of the heart, ensuring that the blood is pushed through the circulatory system effectively. Compressing to a depth less than 2 inches may not produce sufficient blood flow, while compressing deeper than 2.4 inches may lead to complications such as rib fractures or damage to the underlying organs.

The other options either fall short of the necessary depth or exceed safe limits for compression depth in adults. Maintaining the correct compression depth is part of the overall guidance provided by organizations like the American Heart Association, ensuring that CPR is both effective and safe.