What Is an AED, and Would You Know How to Use One?
Posted by Sydney Pulse, APRN at 1:23 am 0 Comment Print
You have walked past one dozens of times: a small wall-mounted box with a heart-and-lightning-bolt symbol, tucked near the elevators at work, the front desk at your gym, or the hallway at your kid’s school. Most people never give it a second thought. On the day someone collapses, that box can matter more than anything else in the building.
This guide explains what an automated external defibrillator (AED) is, how to use one, and why a little hands-on training makes such a difference.
Why Cardiac Arrest Is a Race Against the Clock
More than 350,000 adults in the United States have a cardiac arrest outside a hospital every year. Cardiac arrest is not the same as a heart attack. A heart attack is a blockage that limits blood flow to the heart. Cardiac arrest is an electrical problem: the heart suddenly stops pumping effectively, and the person loses consciousness and normal breathing within moments.
Without help, the odds fall quickly. Survival chances drop by roughly 7 to 10 percent for every minute that passes without CPR and a shock. Emergency crews work fast, but they still need time to reach you, and the people nearby are the ones who can act in those first minutes.
According to the American Heart Association, immediate CPR can double or triple the chance of survival. Yet bystanders step in with CPR only about 40 percent of the time, and only about 1 in 8 people who collapse in a public place get a shock from a bystander using an AED. That gap is the opportunity.
What an AED Actually Does
An AED is a lightweight, portable device that checks a person’s heart rhythm and, when it detects a rhythm that can be corrected, delivers a controlled electric shock through two sticky pads placed on the chest. The goal is to help the heart reset into an effective rhythm.
Three design features make AEDs safe for everyday people:
- It makes the decision for you. The device analyzes the rhythm itself and will only advise a shock when one is needed.
- It talks you through the process. Clear voice prompts (and often pictures on the pads) tell you what to do next.
- It works for nearly everyone. Most models can be used on children, and many include child pads or a child mode.
What to Do When Someone Collapses
If you see a person collapse, remember three actions: call, push, and send.
- Call 911. Make sure the scene is safe, check whether the person responds, and call for help or point at a specific bystander and tell them to call.
- Push hard and fast. If the person is not breathing normally (gasping does not count as normal breathing), begin chest compressions in the center of the chest at a rate of 100 to 120 per minute.
- Send someone for the AED. Ask another person to find the nearest one and bring it back while you continue compressions.
A dispatcher can coach you through CPR over the phone, so do not be afraid to put the call on speaker and follow along.
How to Use an AED, Step by Step
When the AED arrives, keep these steps in mind. The device will repeat them out loud, so you are never working from memory alone.
- Turn it on and listen to the prompts.
- Bare the chest. Remove clothing from the area and wipe the skin dry if it is wet.
- Attach the pads exactly as shown in the pictures on the pads. Plug in the connector if your model requires it.
- Let the AED analyze. Make sure no one is touching the person while it checks the rhythm.
- Deliver the shock if advised. Say “clear,” look to confirm everyone is standing back, and press the Shock button when prompted.
- Restart CPR immediately and continue until paramedics arrive or the person starts to respond. If the AED says no shock is needed, resume CPR as instructed.
An AED does not replace CPR. The two work together: compressions keep blood moving to the brain and organs, and the shock can help restore a normal rhythm.
Common Worries That Keep People From Helping
“What if I make it worse?” You cannot harm someone who is in cardiac arrest by trying to help. The AED will not shock a person who does not need it.
“What if I get sued?” Good Samaritan laws are designed to protect people who step in to give lifesaving care in good faith.
“I am not a medical staff.” You do not need to be. AEDs were built for the general public, and there is no minimum age to operate one.
“What if I do it wrong?” Imperfect help is far better than no help. Training simply removes the hesitation.
Where to Find an AED
Look in places where many people gather: offices, schools, gyms, shopping centers, churches, airports, and government buildings. Cabinets are usually mounted on a wall near an entrance or hallway and marked with the heart-and-bolt symbol. It is worth taking 30 seconds the next time you walk into a building to notice where the AED is, whether that is your workplace, your child’s school, or your gym. Apps such as PulsePoint also keep a registry of nearby AED locations in participating areas.
If you manage a workplace or a facility, make sure the location is visible, easy to reach, and known to your team. Staff cannot use a device they do not know exists.
Get Trained Locally at CPR Cincinnati
Reading about an AED is a great start. Practicing on a manikin with an instructor beside you is what turns that knowledge into confidence.
CPR Cincinnati is an American Heart Association training site offering hands-on classes in the Cincinnati area, including:
- BLS for Healthcare Providers for nurses, EMTs, students, and other clinical professionals
- ACLS and PALS, both first-time and renewal
- HeartSaver First Aid and CPR/AED for teachers, coaches, childcare providers, and anyone who wants to be ready
- Office and group training for teams that want everyone trained together
Not sure which course fits? Use the Which CPR Class Do I Need? guide, or call us and we will point you to the right one.
Register today: call 513-828-3488 or visit acls-bls-cincinnati.com. Location: 4225 Malsbary Road, Room 204, Cincinnati, OH 45242.
Frequently Asked Questions
Do I need training to use an AED? No. AEDs are made for people without medical training and give spoken instructions. Training helps you start faster, stay calm, and pair the AED with good-quality CPR.
Can an AED be used on a child? Yes. Most AEDs can be used on children. Many include child pads or a child setting, and the device will guide you.
Should I start CPR or get the AED first? Call 911 first, then begin compressions. If other people are present, send one of them for the AED while you keep going.
How long does AED and CPR certification last? AHA CPR and AED course cards are typically valid for two years. Check with your instructor or employer for the requirement that applies to you.
Can I use an AED on someone who is breathing normally? An AED is meant for a person who is unresponsive and not breathing normally. If the person is breathing normally, they do not need a shock.
