An automated external defibrillator (AED) is a portable electronic device that automatically diagnoses life-threatening cardiac arrhythmias and treats them through defibrillation, the application of electrical therapy to restore a normal heart rhythm. AEDs are designed for use by laypersons in emergencies, making them critical components of emergency action plans for various settings such as schools, workplaces, and public places. Their accessibility and ease of use significantly enhance the chances of survival for individuals experiencing sudden cardiac arrest.
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