code blue

noun
(often initial capital letters) a medical emergency in which paramedics are dispatched to aid a person undergoing cardiac arrest.

Origin:
1980–85

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Each resident has the opportunity to participate as a member of the code blue response team.
Biweekly in-situ program where manikin is situated in the hospital and code blue is called overhead.
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