Defibrillator PPT

1. DEFIBRILLATOR
PREPARED BY:
PROF.VIJAYREDDY
PhD Scholar, M.Sc (N), PGDHA, PGCDE,.
DEPT OF MEDICAL-SURGICAL NURSING
INDIA.

2. INTRODUCTION
• Also known as Automated External Defibrillator (AED), Implantable
Cardioverter Defibrillator (ICD), Wearable Cardioverter Defibrillator
(WCD)
• Defibrillators are devices that restore a normal heartbeat by sending an
electric pulse or shock to the heart. They are used to prevent or correct an
arrhythmia, a heartbeat that is uneven or that is too slow or too fast.
Defibrillators can also restore the heart’s beating if the heart suddenly
stops.
Different types of defibrillators work in different ways. Automated external
defibrillators (AEDs), which are in many public spaces, were developed to
save the lives of people experiencing sudden cardiac arrest. Even untrained
bystanders can use these devices in an emergency.
Other defibrillators can prevent sudden death among people who have a
high risk of a life-threatening arrhythmia. They include implantable
cardioverter defibrillators (ICDs), which are surgically placed inside your
body, and wearable cardioverter defibrillators (WCDs), which rest on the
body. It can take time and effort to get used to living with a defibrillator,
and it is important to be aware of possible risks and complications.

3. About defibrillators
• A defibrillator is a device that gives a high
energy electric shock to the heart of someone
who is in cardiac arrest.
• This high energy shock is called defibrillation,
and it's an essential part in trying to save the
life of someone who’s in cardiac arrest.

5. HOW THEY WORK
• There are three types of defibrillators: AEDs,
ICDs, and WCDs. Each type works by
checking for arrhythmias, or irregular heart
rhythms. Once detected, each defibrillator will
send a shock to restore a normal rhythm. Learn
more about how the three types of
defibrillators work.

6. WHO NEEDS THEM?
• Defibrillators can be used in children, teens,
and adults. AEDs are used to treat sudden
cardiac arrest. Your doctor may recommend an
ICD or WCD to treat an arrhythmia and
prevent new or repeat sudden cardiac arrests.

7. CONTD…
• Cardiac arrests can happen to anyone, at any time.
The following steps give someone the best chance
of survival. If you come across someone in
cardiac arrest:
• Call 999
• Start CPR
• Ask someone to bring a defibrillator if there’s one
nearby
• Turn on the defibrillator and follow its
instructions.

8. To use a defibrillator, follow these simple steps:
• Step 1: Turn the defibrillator on by pressing the green button and follow its
instructions.
• Step 2: Peel off the sticky pads and attach them to the patient’s skin, one on
each side of the chest, as shown in the picture on the defibrillator.
• Step 3: Once the pads have been attached, stop CPR and don’t touch the
patient. The defibrillator will then analyse the patient’s heart rhythm.
• Step 4: The defibrillator will assess whether a shock is needed and if so, it
will tell you to press the shock button. An automatic defibrillator will shock
the patient without prompt. Do not touch the patient while they are being
shocked.
• Step 5: The defibrillator will tell you when the shock has been delivered
and whether you need to continue CPR.
• Step 6: Continue with chest compressions and rescue breaths until the
patient shows signs of life or the defibrillator tells you to stop so it can
analyse the heartbeat again.

9. Using an AED in an Emergency
• AEDs are found in many public spaces. They
may be used in an emergency to help someone
who is experiencing sudden cardiac arrest.
Learn how to recognize sudden cardiac arrest
emergencies—when you might use an AED,
how to find an AED if you need one, and how
to use an AED until help arrives.

10. When to use an AED
• A person whose heart stops from sudden cardiac arrest must get
help within 10 minutes to survive. Fainting is usually the
first sign of sudden cardiac arrest. If you think someone may be in
cardiac arrest, try the following steps:
• If you see a person faint or if you find a person already
unconscious, first confirm that the person cannot respond. The
person may not move, or his or her movements may look like a
seizure.
• You can shout at or gently shake the person to make sure he or she
is not sleeping, but never shake an infant or young child. Instead,
you can gently pinch the child to try to wake him or her up.
• Check the person’s breathing and pulse. If the person is not
breathing and has no pulse or has an irregular heartbeat, prepare to
use the AED as soon as possible.

11. Where to find an AED
• You often find AEDs in places with large numbers
of people, such as shopping malls, golf courses,
gyms and swimming pools, businesses, airports,
hotels, sports venues, and schools. You can also
purchase a home-use AED.
• The AED is in a case about the size of a large
first-aid kit. Many AEDs have a heart logo in red
or green. Large letters on the case or the wall
where it is stored might spell out A–E–D.

12. WHO CAN USE A DEFIBRILLATOR?
• You don’t need to be trained to use a defibrillator
– anyone can use it. There are clear instructions
on how to attach the defibrillator pads. It then
assesses the heart rhythm and will only instruct
you to deliver a shock if it’s needed.
• In a recent survey, three quarters of people said
they wouldn’t feel confident enough to act if they
saw someone having a cardiac arrest. With more
CPR training and greater awareness, we can
change that.

13. How to use an AED
• Even someone without special training can respond in an
emergency by following the instructions relayed by the device.
If someone is having sudden cardiac arrest, using an AED and
giving CPR can save that person’s life. When using an AED:
• Call 9-1-1 or have someone else call 9-1-1. If two rescuers
are present, one can provide CPR while the other calls 9-1-1
and gets the AED.
• Make sure the area around the person is clear; touching the
person could interfere with the AED’s reading of the person’s
heart.
• If an electric pulse or shock is needed to restore a normal
rhythm, the AED uses voice prompts to tell you when and how
to give the shock, and electrodes deliver it. Some AEDs can
deliver more than one shock with increasing energy.
• The device may instruct you to start CPR again after
delivering the shock.

14. REFERENCES
1.https://www.nhlbi.nih.gov/health-
topics/defibrillators
2. https://www.webmd.com/heart-disease/heart-
failure/qa/what-is-the-definition-of-
defibrillator