What is the recommended compression depth for adult CPR?

The recommended compression depth for adult CPR is 2 inches. This guideline is based on studies and evidence that show compressions of this depth produce adequate blood flow to vital organs during cardiac arrest. Compressing to a depth of 2 inches helps to achieve a balance between effective circulation and minimizing potential injury to the chest wall. It is essential to ensure that compressions are not too shallow, as this could result in inadequate blood circulation, which is critical during an emergency situation.

In contrast, shallower compressions, such as 1 inch or 1.5 inches, do not provide the necessary force to effectively pump blood from the heart to the body's vital organs. Furthermore, compressions deeper than 2.5 inches may increase the risk of injury to the ribs and internal organs, making a depth of 2 inches the optimal target for achieving both effectiveness and safety in adult CPR.