Glossary and Definitions

Here you can find the most used Abbreviations, Definitions and Acronyms.

They will help you become familiar with the terminology.



ABC – Airway, breathing, and circulation
AED – Automated external defibrillator
AHA – American Heart Association
ARC – American Red Cross
BLS – Basic life support
CI – Confidence interval
COI – Conflict of interest
CoSTR – Consensus on Resuscitation Science and Treatment Recommendations
CPR – Cardiopulmonary resuscitation
EMS – Emergency medical systems
EMT – Emergency medical technician
ILCOR – International Liaison Committee on Resuscitation
LOE – Level of evidence
MLF – Minimum level of fitness
PSS – Physical skill set
SABC – Suction, airway, breathing, and circulation
USLA – United States Lifesaving Association
USLSC – United States Lifeguard Standards Coalition
WRCT – Water rescue competency test

Cardiopulmonary resuscitation (CPR) is an emergency procedure, performed in an effort to manually preserve intact brain function until further measures are taken to restore spontaneous blood circulation and breathing in a person in cardiac arrest. It is indicated in those who are unresponsive with no breathing or abnormal breathing, for example, agonal respirations.


Automated external defibrillator (AED) is a portable electronic device that automatically diagnoses the potentially life threatening cardiac arrhythmias of ventricular fibrillation and ventricular tachycardia in a patient and is able to treat them through defibrillation, the application of electrical therapy which stops the arrhythmia, allowing the heart to reestablish an effective rhythm.

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