26/01/2026
MYTH: "AEDs are too complicated for the public to use."
TRUTH: They're designed to guide you—step-by-step—to help save a life.
What are AEDs and where are they?
You’ve likely seen them—those bright yellow, green, or white boxes on walls in train stations, airports, village halls, supermarkets, or even old phone boxes. They're Automated External Defibrillators (AEDs), and they exist for one reason:
To help someone in cardiac arrest—fast.
What happens during cardiac arrest?
• The heart suddenly stops beating effectively.
• Blood (and oxygen) stop reaching the brain.
• Every minute without help reduces survival chances by 10–12%.
• After 3 minutes, brain damage begins.
• But if you use an AED within that time? Survival jumps to 80%.
How AEDs Work (and why you can't get it wrong)
When someone collapses and is unresponsive and not breathing normally (or gasping irregularly):
1. Open the AED—it switches on automatically.
2. Follow the voice instructions.
3. Remove clothing from the chest.
4. Apply pads as shown:
a. Top right of chest
b. Below the left armpit
(See image: “AED-Pad-Placement-Adult.jpg”)
5. The machine checks the heart rhythm.
a. If a shock is needed, it will ask you to press the button.
b. If no shock is needed, it will guide you to start CPR.
Some AEDs even include a metronome to guide the correct pace for chest compressions.
It then repeats a cycle of:
• 2 minutes of CPR
• Rhythm analysis
• Shock (if needed)
When to stop:
If the person starts breathing again:
• Turn off the AED
• Place them in the recovery position
• Keep monitoring—they may arrest again
The Real Danger? Doing Nothing.
No one has ever been successfully sued in the UK for trying to help in an emergency.
"The worst thing you can do… is nothing."
Would you feel confident stepping in?
Don’t Wait Until It’s Too Late
Book your Emergency First Aid at Work training today—learn to save lives with confidence. www.passionfirstaid.co.uk
Book your first aid training today and be ready for anything. www.passionfirstaid.co.uk
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