When someone suffers sudden cardiac arrest, every second counts. In Sydney alone, hundreds of cardiac arrests occur each year outside of hospitals. While Automated External Defibrillators (AEDs) are designed to be simple, many bystanders still hesitate—or worse, make critical mistakes.
So, understanding the most common AED mistakes bystanders make can mean the difference between life and death.
An AED can increase survival rates by up to 70% when used quickly alongside CPR. However, delays and misuse often reduce these chances significantly.
👉 According to Australian Securities and Investments Commission and first aid authorities, early intervention is key in emergency response systems.
One of the biggest mistakes is simply not using the AED at all.
Many people assume:
👉 In reality, AEDs are designed for public use and give clear voice instructions.
Before the AED arrives, CPR is critical.
Without CPR:
Another common AED mistake is placing pads incorrectly.
Correct placement:
Even though AEDs guide you, panic can lead to errors.
Sydney environments (pools, beaches, sweat) increase this risk.
Before using AED:
👉 This ensures effective shock delivery.
AED pads must be placed directly on skin.
Common issues:
Always clear the chest area before applying pads.
This is dangerous and reduces effectiveness.
👉 Always:
AEDs will prompt: “Stand clear”
AEDs are designed to guide you step-by-step.
However, under pressure, people:
👉 Stay calm and follow prompts carefully.
Even if an AED is used successfully, emergency help is still required.
👉 Always call 000 immediately before or during AED use.
The best way to avoid AED mistakes is through hands-on training.
👉 Childcare & workplace safety
Training builds:
For best practices and national standards, refer to:
AEDs save lives—but only when used correctly and without hesitation.
So, by understanding the most common AED mistakes bystanders make, you can:
Hesitating or not using the AED at all is the most common and dangerous mistake.
Yes. AEDs are designed for public use and provide step-by-step instructions.
Yes. Start CPR immediately and continue until the AED is ready.
No. Dry the chest first to ensure safe and effective use.
AEDs analyse heart rhythm and only deliver a shock if needed.
