What is the recommended depth for chest compressions in an adult during CPR?

The recommended depth for chest compressions during CPR on an adult is about 2 inches, which is considered to be effective in generating sufficient blood flow to the brain and vital organs. Compressions at this depth help to create the necessary pressure within the chest cavity to circulate blood effectively during cardiac arrest.

Compressions that are too shallow may not provide enough blood flow to maintain circulation, while compressions that are deeper than recommended can risk causing injury to the sternum or ribs. Therefore, the guideline of approximately 2 inches balances the need for effective compressions while minimizing the risk of injury. Adhering to this guideline is essential for optimizing the chances of survival for a person in cardiac arrest.