Think you know AARP? What you don't know about us may surprise you. Discover all the 'Real Possibilities'




AARP Real Possibilities
Car buying made easy with the AARP Auto Buying Program


Piggy bank on the road - AARP Driver Safety

Take the new AARP Smart Driver Course!

Contests and

Dream Vacation Sweepstakes

10 weeks. 10 amazing trips. Seize your chance to win!
See official rules. 


ATM Mobile App for iPhone and Ipad

Enjoy the best of AARP’s award-winning publications

on the go with the new

AARP ePubs iPad App


AARP Games - Play Now!


Planning for Long-Term Care for Dummies

Get expert advice on planning for your own or a relative’s future care needs.


Learn From the Experts

Sign up now for an upcoming webinar or find materials from a past session.

Learning centers

Get smart strategies for managing health conditions.



Heart Disease


Most Popular



share your thoughts

What does the health care law mean to you? Your story is important. We read and learn from every story and it helps us in our educational efforts. We may even use your comments (with permission) to brief legislators, inspire readers and more. Please share your story with us. Do

You Can Save a Life

By taking 60 seconds to learn hands-only CPR — now

AED (automated external defibrillator) Assisted CPR

The most common reason for a sudden cardiac arrest is a ventricular fibrillation, which is an extreme disruption of the heart's ability to beat and pump blood. While CPR can temporarily maintain a patient's blood and oxygen flow, use of an AED — short for automated external defibrillator — is often the only way to permanently restore the heartbeat.

Rescue intervention with an AED is, says Sayre, "akin to rebooting your computer when it crashes." However, in order to be effective, an AED must be used within three to five minutes of the cardiac arrest.

To increase the availability and use of AEDs by the public, the devices are frequently installed alongside the wall-mounted first aid kits and fire extinguishers located in many municipal and commercial buildings, such as airports, shopping malls and stadiums.

A common misperception about AEDs is that they are for use only by professional emergency responders. In fact, the opposite is true. Paramedics arrive at emergency scenes with their own fibrillation equipment. The AEDs installed in public places are very similar to, but are not the same as, the devices found in emergency rooms and ambulances, and used with great fanfare on TV medical dramas.

AEDs, which provide voice instructions and visual prompts to the bystander who is providing aid, come with pads and wires that attach to a victim's bare chest. The device analyzes the person's heart activity to determine when and if an electric shock should be delivered.

Dr. Gordon Ewy, director of the University of Arizona's Sarver Heart Center (he appears in the video, above, and helped create the hands-only CPR guidelines), reminds that AEDs are to be used in conjunction with chest compressions, not instead of them.

In a typical cardiac arrest scenario where an AED is available:

  1. Call 911 and retrieve the AED, or ask someone else to.
  2. Perform deep chest compressions until the AED is activated and, if determined suitable, administers a shock.
  3. Continue chest compressions (at a rate of 100 a minute for two minutes) until the AED performs another assessment, recommends another shock, the patient is revived or medical assistance arrives.

Helpful Hint: Even with the assistance of an AED, performing CPR is hard work for a rescuer. If other bystanders are available to help, take turns performing chest compressions, perhaps switching off after each minute of 100 compressions.

Topic Alerts

You can get weekly email alerts on the topics below. Just click “Follow.”

Manage Alerts


Please wait...

progress bar, please wait

Tell Us WhatYou Think

Please leave your comment below.

Health Blog

Discounts & Benefits

bring health To Life-Visual MD

AARP bookstore

AARP Bookstore - woman reaches for book on bookshelf


Find titles on brain health, drug alternatives, nutrition and losing weight. Do