How to Use a Defibrillator (AED) – First Aid Training – St John Ambulance

An AED is a life saving device that can give your heart an electric shock when it has stopped in a cardiac arrest. AED is short for
‘Automated External Defibrillator’. An AED can be used on adults and children over 1
year old. Using an AED in crucial minutes before an ambulance arrives can increase
someone’s chance of survival. Anyone can use an AED. You don’t need to
be worried about getting it wrong or causing harm, because the machine
analyses the casualty’s heart’s rhythm and then gives visual or voice prompts to guide
you through each step. If someone is unresponsive and not
breathing normally, ask someone to call 999 or 112 for emergency help. Ask them to bring an AED if one is available. If you are alone, make the emergency call yourself on a mobile phone or on speakerphone and start CPR
with chest compressions. Do not leave the casualty to look for an AED. Keep doing CPR until someone brings an AED. As soon as the AED arrives, ask for it
to be switched on while CPR is continued. It will immediately start to give you a
series of visual and verbal prompts informing you of what needs to be done. If someone is with you, ask them to follow the instructions until emergency help
arrives. AED VOICE PROMPT: Call for help now. AED VOICE PROMPT: Remove all clothing from patient’s chest. AED VOICE PROMPT: Pull red handle to open bag. AED VOICE PROMPT: Look at pictures on pads. AED VOICE PROMPT: Peel one pad off blue plastic. AED VOICE PROMPT: Apply pad to bare skin
exactly as shown in the picture. AED VOICE PROMPT: Press pad firmly. Peel other pad off blue plastic. AED VOICE PROMPT: Apply pad to bare skin exactly as shown in the picture. AED VOICE PROMPT: Evaluating heart rhythm.
TRAINER: Stop compressions Susan, stand back. AED VOICE PROMPT: Stand by. Preparing to shock.
TRAINER: Stand clear everyone! AED VOICE PROMPT: Everyone clear. Do not touch patient. TRAINER: Stand back.
AED VOICE PROMPT: Delivering shock. *AED beeps* AED VOICE PROMPT: Shock delivered. Provide chest compressions and rescue breaths. The AED will instruct you to continue CPR for two minutes before it re-analyses. The AED could say ‘no shock advised, continue CPR’. If the casualty shows signs of becoming responsive, place them in the recovery
position. Leave the AED attached. Continue to follow the voice and/or visual
prompts that the machine gives you, until help arrives. So remember: when using an AED, call 999 or 112 for emergency help. Continue giving CPR when the AED arrives, and keep going while the pads are applied if possible. Ensure that the pads are placed on the chest after clothing has been cleared or cut away. Ask for the AED to be switched on and follow the instructions. Ask people to stand back when the AED is analysing and when any shocks are being delivered. And that’s how you use an AED. If this video has been helpful to you,
help support St John Ambulance by going to sja.org.uk/donate

41 comments

  1. Please do NOT feel that you are pressing to hard as you are not if ribs crack this just means it is correct and that they can be repaired once casualty is in hospital

  2. if your doing CPR without mouth to mouth and meaning hands on only and doing 100 compressions per minute as adviced i think it was then u attached a AED and the AED says after the shock to continue with compression and administer a breath can u just continue doing hands on like you have been doing until the next shock or pemedics arrive. Or do you have to do compressions and give a breath .i just want to get all the full knowledge of this

  3. We have several of these in my town on Sweden, but everyone think they work like paddles in movies. Thanks, this video made it a bit more clear.

  4. Awful CPR, really St Johns, her weight is not over the casualty and 5 – 6 cm is not achieved. Great defib demo though.

  5. Isn't rhe defibrillator placement wrong?
    The unit should be placed above the head so it's accessible from both sides. So the one doing the ventilating alsow deals with the defib. And the one doing compressions isn't disubred. While the switch is easy to do without any CPR pause

  6. Does it matter what pad is placed where? Of course I’m on casualty’s upper right chest and lower left. But out of curiosity, would polarity of shock make a difference?

  7. Good video! (And useful as well) — Our local church has clubbed together and bought a defibrillator (which cost £2,000) which has now been installed on the wall of the steps outside the church….with instructions about procedure…. Can I ask you : What does word defibrillator actually mean? — And is it an alternative procedure to doing CPR??

  8. This video couldn’t have come at a better time in my recommendations. A week after watching this video, a man in the bar I work part time in had a cardiac arrest, while doing CPR, I followed all the instructions, I asked someone to get me an AED, everyone looked at me strange, as I am only young, 16, and they didn’t think I’d know how to do it, I got my co worker to continue the CPR as I placed on the pads to shock him, a few seconds later the ambulance arrived and took over. The man survived, and the ambulance crew was surprised at how young I was, telling me that what I did probably saved that mans life. I still see him at the bar from time to time.

  9. Lateral pad is poorly placed. Attention to detail is important with pad placement. Should be placed on he mid auxillary line, not the anterior auxillary line as this was.

  10. Why doesn't the AED call the ambulance? it has a battery. It has speakers. Why not add a sim card, make it autodial 999 when it decides the patient needs an ambulance and then on loudspeaker whilst you are delivering first aid, you can be on the phone hands free.

  11. Every supermarket
    Every gym
    Every stadium
    Every mall
    Should have a machine
    Fitted as standard
    This should be the law imo

    And also at least two members of staff trained to use these machines

  12. I had an operation and would need to use one arm/hand doing chest compressions. it there a technique for this. thankyou

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