An AED (Automated External Defibrillator) is a portable life-saving medical device used to treat sudden cardiac arrest (SCA). It analyzes the heart rhythm and, if needed, delivers an electric shock to restore a normal heartbeat.
What an AED does
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Detects dangerous heart rhythms
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Delivers an electric shock (defibrillation)
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Helps restore a normal heart rhythm
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Guides rescuers with voice and visual instructions
The shock stops abnormal electrical activity so the heart can return to a normal rhythm.
When an AED is used
AEDs are used during sudden cardiac arrest, when a person:
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collapses suddenly
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is unresponsive
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is not breathing normally
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has no pulse
Most cardiac arrests occur due to ventricular fibrillation, a chaotic heart rhythm that requires immediate defibrillation.
Why AEDs are important
✔ Saves lives during cardiac arrest
✔ Can be used by anyone with minimal training
✔ Provides step-by-step voice guidance
✔ Critical before ambulance arrival
✔ Improves survival rates significantly





