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Chain of Survival for Sudden Cardiac Arrest

The Chain of Survival is a five-step process for providing treatment to victims of sudden cardiac arrest (SCA) developed by the American Heart Association (AHA) in 1990 after several decades of research into SCA. It was designed in recognition of the fact that most episodes of SCA occur outside of a hospital, with death occurring within minutes of onset without treatment. Quick execution of each and every link is critical because the chances of survival decrease 7 to 10% with each passing minute.

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