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Glossary
AED automated external defibrillator
AHA American Heart Association
ALS advanced life support
arrhythmia irregular rhythm of the heart muscle
BLS basic life support
bradycardia abnormally slow heart rate
cardiac arrest cessation of the heart muscle
CPR cardiopulmonary resuscitation
defibrillation high-energy pulse of electricity (shock) delivered to the heart muscle to
restore normal cardiac activity
defibrillation protocol preset order and level of the shock energy delivered at
defibrillation (for example 200, 200, 360 Joules or 200, 300, 360 Joules)
ECG electrocardiogram
electrocardiogram curve traced by an electrocardiograph
electrocardiograph instrument used to record electrical currents associated with heart
muscle activity
EMS emergency medical services
erythema redness of the skin
fibrillation rapid twitching movements that replace the normal rhythmic contraction of
the heart and may cause a lack of circulation and pulse
joule the amount of energy delivered during defibrillation, related to the intensity of the
shock delivered
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