10 Automated External Defibrillation

8/13/2019 10 Automated External Defibrillation

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10-1

Automated

External

Defibrillation

Lesson 10


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10-2

Introduction

Many patients receiving CPR benefit from anAED

Abnormal heart rhythm can be corrected with

AED shock Use AED with unresponsive, non-breathing, and

pulseless patients

CPR keeps patient viable until AED shock

restores normal heart rhythm


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10-3

AEDs, Medical Direction, and

Laws

Medical director oversees placement/use of AED

Many AED units in homes/other settings

Safe to use by lay rescuers


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Hearts Electrical System


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System keeps contractions of four chambers of

heart synchronized

With heart attack (or other problems), rhythmic

electrical control disrupted

Hearts Electrical System


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10-6

Ventricular Fibrillation (VF)

Most common abnormal heart rhythm

Ventricles of heart are quivering instead of

beating rhythmically

In about of cases of cardiac arrest, victimsheart is in VF


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10-7

How AEDs Work

Automatically checks victims

heart rhythm to detect

fibrillation

Advises whether victimneeds a shock

The shock (defibrillation) may

return heart to a more normal

rhythm


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10-8

Time is Important

AEDs are easy and simple to use but must be used right

away

With every minute that goes by, survival drops by 10%


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10-9

The AED Unit

Contains a battery and is portable

Unit has 2 pads connected to it with cables

Pads are placed on victims chest Unit analyzes victims heart and advises whether

to give a shock


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10-10

Using an AED

Whenever patient suddenly collapses or is found

unresponsive consider cardiac arrest


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10-11

AED and CPR

Check patients ABCs Use AED if patient is unresponsive, not breathing, and

pulseless

With two rescuers, one gives CPR and one sets up AED

For pulseless patient, use AED as soon as it is readyexcept: For pulseless child not observed to have collapsed

suddenly

For adult found pulseless on arrival and 4-5 minuteshave passed since you were called to respond


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10-12

Be sure patient not in water or incontact with metal

Place AED near patients shoulderand turn it on

Attach pads to patients chest

See diagram on pads

One on right side below collar

bone, the other below and to leftof left nipple

Attach AED to

Patient


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10-13

Attach AED to Patient continued

Attach pads to patient only if patient is unresponsive, not

breathing, and pulseless.

Expose patients chest and dry /shave it if needed

Remove backing from pads and apply firmly on patientschest

If required with AED model, plug pad cables into main

unit


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10-14

Analyze and Shock

Most AEDs automatically analyze patients heart rhythm

Do not move or touch patient while it is analyzing

Unit will advise shock or to continue CPR

Follow units prompts


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10-15

Analyze and Shock

If shock advised:

Be sure no one is touching patient

Administer shock

Immediately give 5 cycles CPR (~2 minutes) AED will analyze and advise again


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10-16

Different AEDs May Use Different

Prompts

Follow units voice and picture prompts

Some units programmed to administer shock

automatically; follow units prompts


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10-17

If the Patient Recovers

Put unresponsive, breathing patient in recoveryposition

Continue to monitor breathing

Keep AED pads in place. Some patients returnto VF and require defibrillation again


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10-18

If The AED Says No Shock

Patients heart will not benefit from defibrillation

Immediately continue CPR


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10-19

Skill: AED


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Position victim away from water and metal.

Place unit by victims shoulder.


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10-21

Expose victims chest.

Dry or shave area as necessary.


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Apply pads to chest.


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Stand clear.


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Follow prompts.


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10-25

Stand clear when AED prompts to analyzerhythm again after 5 cycles of CPR (about 2

minutes) Continue until patient moves or EMS arrives and

takes over

If patient recovers, check for breathing

Put breathing unresponsive patient inrecovery position (with pads in place) andcontinue to monitor breathing


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10-26

AED Alerts

Avoid flammable materials, including oxygen

flowing through a mask

Dont use alcohol to wipe patients skin

Dont use AED when in motion

Dont use cell phone or 2-way radio within 6 feet

of AED.


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10-27

AED Use in Children

Follow adult guidelines for children > 8 years

Sudden cardiac arrest can occur in younger

children

SIDS Poisoning

Drowning

Heart problems


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10-28

AED Use in Children

Give child 2 minutes of CPR before using AED

Unless witnessed that child collapsed suddenly


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10-29

AED Use in Children

Use pediatric pads

Smaller

Produce lower-energy shocks

Follow diagram on pads for

placement

Pediatric pads should not be

used on adults


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10-30

AED Age Recommendations

AED use recommended for adults and children

ages 1 - 8

AED use for infants is not recommended


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10-31

Changing AED Technology

AED technology continues to evolve

Some units use same pads for all patients

Have a separate switch on unit for pediatric

patients

Always follow AED prompts


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Vary AED placement if there is an

internal device


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10-33

Remove medication patches

prior to pad placement


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10-34

Potential AED Problems

AED must be maintained regularly and have charged

battery

AED may prompt you to avoid problems

With low battery prompt, change battery before continuing

May get prompt to avoid moving victim


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10-35

AED Maintenance

AEDs require regular maintenance

Check manufacturers manual

Daily inspection ensures AED ready for use and supplies

are present

Documents

10 Automated External Defibrillation