Cardiac Arrest

What is cardiac arrest?

Cardiac arrest is the abrupt loss of heart function in a person who may or may not have been diagnosed with heart disease. It can come on suddenly, or in the wake of other symptoms. Cardiac arrest is often fatal, if appropriate steps aren’t taken immediately.

Each year in the United States, more than 350,000 cardiac arrests occur outside of a hospital setting.

Is a heart attack the same as cardiac arrest?

No. The term “heart attack” is often mistakenly used to describe cardiac arrest. While a heart attack may cause cardiac arrest, the two terms don’t mean the same thing.

Heart attacks are caused by a blockage that stops blood flow to the heart. A heart attack (or myocardial infarction) refers to death of heart muscle tissue due to the loss of blood supply. Heart attack can be understood as a “circulation” problem. A heart attack is quite serious, sometimes fatal.

By contrast, cardiac arrest is caused when the heart’s electrical system malfunctions. The heart stops beating properly. Hence the name: The heart’s pumping function is “arrested,” or stopped.

In cardiac arrest, death can result quickly if proper steps aren’t taken immediately. Cardiac arrest may be reversed if CPR  is performed and a defibrillator is used to shock the heart and restore a normal heart rhythm within a few minutes.

Cardiac arrest may be caused by irregular heart rhythms, called arrhythmias. A common arrhythmia associated with cardiac arrest is ventricular fibrillation. Ventricular fibrillation means that the heart’s lower chambers suddenly start beating chaotically and don’t pump blood.

 

 

To Your Safety,
Faisal Javed Mir & First Aid to Save a Life

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About Faisal Javed Mir

Faisal Javed Mir is Occupational Health and Safety Professional, having 12 years of profound experience with multi-national companies. He has knowledge, skills, experience, tools, proven history and confidence to deliver what is required by learners. He is teaching First Aid since 2006 and certified by MEDIC First Aid International of United States for many first aid certification programs. He is the only Instructor-Trainer by MEDIC in Pakistan.
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