In CPR, what is the correct depth for chest compressions?

The correct depth for chest compressions during Cardiopulmonary Resuscitation (CPR) is 2 inches. This depth is recommended to ensure that chest compressions are effective in generating adequate blood flow during cardiac arrest. Compressions that are too shallow may not provide the necessary pressure to maintain circulation, while compressions that go deeper than 2.4 inches can potentially cause injury to the patient, especially in adults.

The American Heart Association guidelines specify this 2-inch depth for adult patients to optimize the chances of survival until emergency medical services arrive. It's important to perform the compressions at a rate of 100 to 120 compressions per minute while allowing full chest recoil between compressions, as this enhances blood flow back to the heart and improves the likelihood of a successful resuscitation.