Automated external defibrillator facts for kids

Defibrillator at the airport in Amsterdam

This public access AED (Automated External Defibrillator) is fitted with a coded lock so that only the Ambulance Service can give callers access to the unit. This is to prevent it from being stolen or misused.

Standard symbol, to show the location of an Automated External Defibrillator.

Very often, signs in public stations show the location of AEDs. This one is in Munich metro.

An automated external defibrillator (say: dee-FIB-rih-lay-tor), or AED, is a special device. It helps people who are having a serious heart problem. An AED can be used by almost anyone, even if they are not a doctor or nurse.

The AED works by giving a controlled electric shock to the heart. This shock can help the heart beat normally again. When someone's heart stops beating properly, it's called a cardiac arrest. This is a very serious medical emergency.

Every minute that a heart problem like this is not treated, the chance of survival goes down. Even if paramedics are called right away, it takes time for them to arrive. This is why AEDs are placed in busy public places. You can often find them in airports, train stations, and shopping malls.

When you use an AED, it often automatically calls for emergency help. The device also gives clear voice instructions. It guides the person helping through each step. This makes it easier for anyone to use it correctly.

What is an AED and How Does It Work?

An AED is a smart machine designed to save lives. It checks a person's heart rhythm. If the heart is beating in a dangerous way, the AED will tell you to deliver an electric shock. This shock helps to reset the heart's electrical activity.

The AED uses special pads that stick to the person's chest. These pads are connected to the machine. The AED then analyzes the heart's rhythm through these pads. It will only deliver a shock if it's needed.

Why Are AEDs Important?

AEDs are very important because they can be used quickly. When someone has a sudden cardiac arrest, every second counts. Getting help fast can make a huge difference.

Studies have shown that using an AED quickly can greatly increase a person's chance of survival. If an AED is used by someone nearby, the chance of survival can be much higher. This is why having AEDs in public places is so helpful.

Finding and Using an AED

Many countries have systems to help people find AEDs. For example, in the United Kingdom, ambulance services often list where public AEDs are located. This helps people know where to go in an emergency.

Some AEDs in public places are kept in special locked boxes. These boxes need a code to open them. If you call for an ambulance, the operator can give you the code. This helps keep the AED safe from being stolen or misused.

When you find an AED, it will guide you step-by-step. It will tell you where to place the pads and when to press the shock button. Remember, the AED will only shock if it detects a problem that needs it.

Images for kids

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  A diagram showing the chain of survival.

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  Defibrillator training kit

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  An AED at a railway station in Japan.

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  The use of easily visible status indicator and pad expiration date on a Cardiac Science G3 AED

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  Usual placement of pads on chest

See also

In Spanish: Desfibrilador externo automático para niños