cardiac arrest
US /ˈkɑːr.di.æk əˈrest/
UK /ˈkɑːr.di.æk əˈrest/
1.
a sudden, unexpected loss of heart function, breathing, and consciousness, usually resulting from an electrical disturbance in the heart
:
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The patient suffered a cardiac arrest and required immediate resuscitation.
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CPR can significantly improve the chances of survival after a cardiac arrest.