AEDs – Automated external defibrillators
On this page
- What is an Automated external defibrillator (AED)?
- Why are AEDs important?
- How to use an AED on an adult, child and infant
- How can I register my AED?
- What do I need to consider when purchasing an AED?
- Maintaining your AED
- Frequently asked questions
What is an Automated external defibrillator (AED)?
An AED is a portable electronic device that detects life-threatening abnormal heart rhythms and delivers an electrical shock to try to restore a normal heart rhythm.
AEDs detect if the heart has a shockable rhythm. They only deliver a shock if required – an AED will not shock someone when a normal heartbeat is detected, or there is no heartbeat at all.
AEDs also give simple step-by-step instructions. This means anyone can use an AED, even if you’ve never seen or used one before.
Why are AEDs important?
CPR alone does not restore a normal heart rhythm. It does help keep the heart in a state where the AED has a greater chance of being able to do its job.
When both CPR is performed and an AED is used within the first 3 to 5 minutes of a cardiac arrest, survival rates can increase to 60–70%.
How to use an AED on an adult, child and infant
Using an AED is easy. Just turn it on and follow the instructions. It will tell you exactly what to do.
For adults and children over 8 years old:
- Use the adult pads and place them as shown on the pictures on the pads, usually one on the upper chest, one on the side.
For children under 8 years old and infants:
- Some AEDs have special child pads or a child mode. Child pads are for children under 8 years old or under 25 kgs. If available, use those. If not, use the adult pads.
- Just place one pad in the middle of the chest, and one in the middle of the back. It is important to make sure that the pads are not touching each other.
- If a child is too small to have pads placed on their chest and side without touching, one of the pads should be placed on the child’s upper back, and the other on their front.
The AED will guide you through every step, so you don’t need training to use it. Just stay calm, listen, and follow the prompts.
How can I register my AED?
If you or your organisation have a publicly accessible AED, it should be registered with your state ambulance service so people can find it in an emergency.
- New South Wales
- Victoria
- Queensland
- South Australia
- Northern Territory
- Tasmania
- For both the ACT and Western Australia, you can find your nearest AED, or register your own, through the St John First Responder App.
What do I need to consider when purchasing an AED?
When purchasing an AED, you might like to consider the following things:
- Warranty period.
- Lifetime of batteries and pads – how often will you have to replace them?
- Size and weight of the device – is it easy to pick up and carry?
- What features does the device have, and what are your needs (e.g. languages, battery and pad expiration, child mode).
- What support and training are offered by the retailer/distributor?
- Does the distributor offer an after-sales monitoring or maintenance service to ensure your device is maintained and working at all times?
Maintaining your AED
Maintaining your AED is simple, all you need to do is regularly:
- Look for any damage.
- Check for a green flashing light or indicator on the front of the device.
- Check that the pads and battery are in date and properly connected.
Pads and batteries need replacing every few years, or after use. Check with your AED’s manufacturer before your battery expires.
Always keep your battery and pads installed, so the AED is ready when you need it.
Frequently asked questions
How much does an AED cost?
AEDs vary in price depending on their features, with prices ranging from $1,400 to $4,000. This pricing is a guide price only.
Choose one that suits your needs and matches your budget.
All AEDs sold in Australia must be approved through the Therapeutic Goods Association ensuring they are safe to use.
Can you use an AED on someone with a pacemaker or implantable device?
Yes, you can use an AED on someone with a pacemaker or implantable device. Just be careful where you place the pads.
- Avoid placing a pad directly over the pacemaker or implantable device (you might see a small lump under the skin, usually near the collarbone or under the arm at the side of the chest).
- Place the pads slightly to the side or above the device leaving two fingers of distance, following the pictures on the pads.
The AED will still work safely and effectively. It checks the heart and only gives a shock if needed, even with a pacemaker in place.
How long do AED pads last?
AED pads typically last 2–5 years, depending on the manufacturer, there will always be an expiration date on the pads. Pads need to be replaced when they are used or past their expiry date. You must ensure that the pads remain attached to the AED at all times.
How long does an AED battery last?
An AED battery lasts typically 4–7 years, depending on the manufacturer and how often it is used. Batteries need to be replaced when they pass their expiry date. You must ensure that the battery remains always attached to the AED.
Where should I store my AED?
Store your AED somewhere easy to see and easy to reach – ideally in a public spot where anyone can use it in an emergency.
- Don’t lock it away or hide it in a cupboard.
- Use a wall cabinet or bracket if possible.
- Make your AED 24/7 accessible – there are a range of secured cabinet options available to consider.
- Make sure it’s clearly marked and well lit.
Let people know where it is and register it with your state ambulance service.
The goal is to make it available fast – because every minute counts.
Do I need to be medically trained to use an AED?
No, AEDs are designed so that anyone can use them in an emergency. Just turn it on and follow the prompts.
Can I hurt myself or someone when using an AED?
No, you cannot harm yourself or others by using an AED. An AED automatically reads the heart’s rhythm and will only deliver a shock to someone if they require it. The AED can also tell you when it is safe to touch the person or to ‘stand clear’.
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