CPR (cardiopulmonary resuscitation) is an emergency lifesaving procedure performed when a person stops breathing or the heart stops beating. It can be performed as Hands-Only™ CPR, with rapid compressions on the chest; or it can be performed as chest compressions and mouth-to-mouth breathing. Immediate CPR can double or triple chances of survival after sudden cardiac arrest. The American Heart Association develops CPR guidelines and techniques, and is a leader in CPR training.

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