Introduction
An Automated External Defibrillator (AED) is a life-saving device used during sudden cardiac arrest. It analyzes heart rhythm and delivers a shock if needed to restore a normal heartbeat.
Knowing how to use an AED correctly can significantly improve survival outcomes in emergencies.
What Is an AED?
An AED is a portable device designed to detect abnormal heart rhythms and deliver an electric shock when necessary.
It is commonly found in:
- hospitals
- public places
- airports
- schools
- workplaces
When Should You Use an AED?
Use an AED when a person:
- is unresponsive
- is not breathing normally
- has no pulse
These are signs of cardiac arrest.
Step-by-Step: How to Use an AED
1. Ensure Scene Safety
Make sure the environment is safe before approaching the patient.
2. Check Responsiveness
Tap and shout to check if the person responds.
3. Call for Help
- Activate emergency medical services (EMS)
- Ask someone to bring an AED
4. Start CPR
- Begin chest compressions immediately
- Rate: 100–120 per minute
- Depth: at least 2 inches
5. Turn on the AED
- Open the device
- Follow voice prompts
6. Attach AED Pads
- Place pads on the patient’s chest as indicated
- Ensure proper placement
7. Allow Rhythm Analysis
- Do not touch the patient
- Let AED analyze heart rhythm
8. Deliver Shock if Advised
- Ensure no one is touching the patient
- Press shock button when prompted
9. Resume CPR Immediately
- Continue CPR for 2 minutes
- Follow AED prompts
Important Safety Tips
- Do not touch the patient during shock delivery
- Ensure the chest is dry
- Remove any medication patches if present
- Avoid placing pads over implanted devices
Common Mistakes to Avoid
- Delaying CPR while waiting for AED
- Incorrect pad placement
- Interrupting compressions too long
- Not following AED prompts
Final Thoughts
Using an AED quickly and correctly can dramatically improve survival in cardiac arrest. Early CPR combined with defibrillation is critical in saving lives.
Start BLS Certification
If you want to learn CPR, AED use, and emergency response in detail, you can complete your BLS certification online with flexible learning and instant certificate issuance.
Start your BLS certification here.
For advanced cardiac emergency management, you can also complete ACLS certification online.