Cardiac arrest is a sudden and unexpected loss of heart function, typically caused by a problem with the heart's electrical system that disrupts its pumping action. This can result in the stopping of blood flow to the body, leading to organs not receiving enough oxygen. Symptoms of cardiac arrest include a sudden loss of consciousness, the absence of a pulse, and stopped breathing. Cardiac arrest is a medical emergency that requires immediate action, such as cardiopulmonary resuscitation (CPR) to manually circulate blood and the use of an automated external defibrillator (AED) to deliver an electric shock to the heart to restore its normal rhythm. Immediate medical attention is crucial to improve the chances of survival and prevent long-term complications.

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