How to Use an AED: Step-by-Step Life-Saving Guide
- Instructor
- 1 day ago
- 2 min read
Automated External Defibrillators (AEDs) are powerful, life-saving tools—and they’re becoming more common in public places like airports, malls, gyms, schools, and office buildings. If someone nearby suddenly collapses and stops breathing, knowing how to use an AED could help save their life. The good news? You don’t have to be a medical professional to use one.
What Is an AED—and Why Is It So Important?
An AED is a portable device that can analyze the heart’s rhythm and deliver an electric shock to help restart a heart that has stopped beating (sudden cardiac arrest). Quick use of an AED, combined with CPR, can double or even triple a person’s chance of survival.
When Should You Use an AED?
Use an AED when someone:
Collapses suddenly
Is unresponsive
Is not breathing or only gasping
If you see this, act fast. Every second counts.
Step-by-Step: How to Use an AED in a Public Place
Step 1:
Call for Help
Shout for help and call 911 or direct someone else to do so.
Ask someone nearby to find the AED—they’re often located near entrances, restrooms, elevators, or security desks. Look for signs with a heart and a lightning bolt.
Step 2:
Start CPR
If the person is not breathing, begin chest compressions immediately.
Push hard and fast in the center of the chest (100–120 compressions per minute).
Step 3:
Turn On the AED
Once the AED arrives, open the lid or press the power button.
The device will start giving you voice and visual instructions—follow them exactly.
Step 4:
Attach the Pads
Expose the person’s chest and remove any clothing or moisture.
Attach the AED pads as shown on the pictures (usually one on the upper right chest, the other on the lower left side)
Some AEDs have pads specifically for children—use those if the victim is under 8 years old.
Step 5:
Let the AED Analyze
Once pads are in place, the AED will automatically analyze the heart rhythm.
Do not touch the person during analysis.
Step 6:
Deliver the Shock (if advised)
If the AED says “shock advised,” make sure no one is touching the person and press the flashing shock button.
After the shock, resume CPR immediately for 2 minutes or until the AED tells you to stop for reanalysis.
Step 7:
Continue Until Help Arrives
Keep following the AED prompts.
Continue CPR and deliver additional shocks as advised.
Do not remove the pads—EMS will take over when they arrive.
Common Questions:
Can I hurt someone by using an AED if they don’t need it?
No. AEDs only deliver a shock if the person is in a shockable rhythm. It won’t shock someone with a normal heartbeat.
What if I’m nervous or not trained?
That’s okay. AEDs are designed for everyday people to use. Just turn it on and follow the step-by-step voice instructions.
Are there legal risks?
Good Samaritan laws in most areas protect bystanders who act in good faith to help during emergencies.
Conclusion
Seeing someone collapse in a public space is scary—but your response doesn’t have to be. AEDs are meant to be used by you. You don’t have to be perfect—just willing to step up.
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