Cardiopulmonary resuscitation, or CPR, is a technique used to support the circulation of blood and oxygen in the body of a victim who is not breathing and does not have a pulse. CPR is physically invasive for the victim and techniques used during CPR carry risks and the chance of complications.

Performing CPR properly can mean the difference between life and death. CPR, which stands for cardiopulmonary resuscitation, is an emergency procedure done when someone’s breathing or heartbeat has stopped. CPR techniques vary depending on the age or size of the patient.