About AED - Automated External Defibrillator

An Automated External Defibrillator (AED) is an electronic device that is used to deliver an electric shock to reset a victim’s heart when it has stopped beating normally.  It is critical that an AED is used as soon as possible, as the likelihood of a successful defibrillation diminishes significantly over time. Defibrillation survival rates increase to greater than 50% when early defibrillation occurs.  For each minute defibrillation is delayed, the victim’s change of survival decreases by about 10%.  

***AED’s are designed for use on adult victims, however most can be adapted to use with pediatric pads for victims who are children or infants

About AED
  • Analyzes the victim’s heart rhythm
  • Determines and advises when shock is needed
  • Delivers electrical shock to victim in cardiac arrest
  • Reestablishes a heart rhythm which will generate a pulse
AED Design 
  • On/Off Button
  • Cable and pads (electrodes)
  • Defibrillation capable
  • Voice prompts to guide defibrillation
  • Battery operated for mobile use
AED Use Overview
  • Place the unit between you and victim – by victim’s shoulder
  • Turn the unit on
  • Apply AED pads to bare chest and the cable to AED unit
  • Stand clear
    • Wait for unit to analyze the heart rhythm
  • Deliver shock, if needed
  • Perform CPR
AED Maintenance
  • Perform routine maintenance checks, as recommended by manufacturer
  • The AED automatically performs periodic self-checks, but should be checked regularly to ensure proper operation
  • Check expiration dates and regularly replace pads and batteries

AED - Automatic External Defibrillator

CPR must be started and continue until defibrillator (AED) becomes available.  
**If an AED is immediately available, following an adult's collapse, perform 2 minutes of the CPR cycle BEFORE attaching electrodes. 

When AED becomes available

DO NOT DELIVER SHOCK IF ANY OF THE FOLLOWING CONDITIONS EXIST: Someone is touching the victim, the victim is alert and/or the victim is wet or in water.

  • Remove victim from any standing water or metal surfaces
  • Dry chest if noticeably wet
  • Remove enough hair from chest for pads to make good skin contact
  • If victim has a transdermal medication patch, remove the patch and wipe the area clean prior to attaching pads
  • Use appropriate AED pads
Adult and Child AED Use
  • Place the AED by the victim’s shoulder
  • Turn on the AED and follow voice prompts
 AED Pad Placement
When placing pads, be sure they do not touch each other
    • Place one pad on the right center of the victim's chest, above the nipple line
    • Place the second pad just below the other nipple and to the left of the ribcage (4-6 inches below the armpit)
    • If victim has a permanent pacemaker, or implanted defibrillator, place the AED pad at least 1 inch to the side of the implanted device
    • Use adult pads or child (pediatric pads)
    • Place one pad between right nipple and collarbone
    • Place the second pad on the left rib cage (3-4 inches below the armpit)
    • Use infant pads only
    • One pad should be placed in the center of the back and the second pad to the center of chest

After pads are placed, wait for AED to analyze the rhythm

  • If a shock is indicated
    • Do NOT touch the victim
    • Ensure no one else is touching the victim
    • Press the shock button
  • After shock is delivered
    • Keep pads on the victim
    • Complete 2 minutes of CPR cycle
    • Reassess the victim’s condition
    • Follow AED voice prompts
  • Continue following AED voice prompts, administering CPR cycle and AED shock until
    • The victim shows signs of life
    • A second rescuer or EMS takes over
    • You are too tired to continue     
  • If NO shock is indicated
    • Continue CPR cycle if the victim is unresponsive
    • Continue CPR until a second rescuer or EMS takes over or you are too tired to continue