MSD Manual

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Automated External Defibrillator: Jump-Starting the Heart
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Automated External Defibrillator: Jump-Starting the Heart

    An automated external defibrillator (AED) is a device that can detect and correct a type of abnormal heart rhythm called ventricular fibrillation. Ventricular fibrillation causes cardiac arrest.

    If cardiac arrest occurs, an AED, if available, should be used immediately.