CPR, or cardiopulmonary resuscitation, is a vital first aid technique used when someone’s heart stops beating

https://www.scribd.com/document/1056132834/First-Aid-and-CPR-Courses-for-Seniors-and-Caretakers-159449

CPR, or cardiopulmonary resuscitation, is a vital first aid technique used when someone’s heart stops beating. Knowing how to perform CPR can double or triple a victim's chances of survival before professional help arrives.