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- Dictionarycardiac arrest
noun
- 1. a sudden, sometimes temporary, cessation of the heart's functioning.
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noun
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Cardiac arrest, also known as sudden cardiac arrest, is when the heart suddenly and unexpectedly stops beating. As a result, blood cannot properly circulate around the body and there is diminished blood flow to the brain and other organs. When the brain does not receive enough blood, this can cause a person to lose consciousness. Coma and persistent vegetative state may result from cardiac arrest.... Wikipedia