What is the recommended compression depth for adult CPR?

The recommended compression depth for adult CPR is between 2 to 2.4 inches. This depth is based on research and guidelines aimed at maximizing the effectiveness of chest compressions during cardiopulmonary resuscitation. The goal is to create enough pressure to generate adequate blood flow to the heart and brain, which is critical in a cardiac arrest situation.

Compression depth plays a vital role in ensuring that enough blood is circulated, thereby improving the chances of survival and recovery. Depths that are significantly below or above this range may not provide the necessary blood flow or could even cause injury to the chest, making it essential to stick to this recommended range during CPR.

In this context, the other options do not align with the established guidelines for effective CPR. Compressions that are too shallow may not adequately perfuse vital organs, while excessive depth could lead to complications such as rib fractures or damage to internal organs. Therefore, maintaining a compression depth of 2 to 2.4 inches is critical to the success of CPR efforts.