What is the recommended compression depth for an adult during CPR?

The recommended compression depth for an adult during CPR is 2 inches. This depth has been established based on research and guidelines aimed at optimizing circulation and blood flow during cardiac arrest. Compressing to a depth of 2 inches ensures that enough pressure is applied to the chest to generate adequate blood flow to the heart and brain.

When performing chest compressions, it is critical not only to achieve the correct depth but also to allow full recoil of the chest between compressions. This practice enhances venous return and maintains blood flow, maximizing the overall effectiveness of CPR.

Depths less than 2 inches may not adequately circulate blood, especially in individuals with larger body types, whereas compressing deeper than 2 inches could increase the risk of injury to the chest or impede efficient compression techniques. Hence, the standard of 2 inches strikes a balance between effectiveness and safety in adult CPR.