What is the recommended compression depth when performing CPR on adults?

The recommended compression depth when performing CPR on adults is at least 2 inches. This depth is critical because effective chest compressions need to create sufficient pressure to maintain blood flow to the brain and heart. Studies and clinical guidelines have shown that compressions at this depth help ensure that enough blood is circulated during the cycle of compressions and allows for proper decompression of the chest, which enables the heart to refill with blood.

If the compressions are too shallow, there may not be adequate perfusion, which can be detrimental in a life-threatening situation. Conversely, compressions that are excessively deep may cause injury to the chest or internal organs, which can result in further complications. Therefore, the guideline emphasizes the 2-inch minimum as a balance between effectiveness in maintaining circulation and safety for the individual receiving CPR.