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code blue

noun

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


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Word History and Origins

Origin of code blue1

First recorded in 1980–85
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Example Sentences

Over the course of talking to nurses, we realized that many kick off their shoes when they’re sitting at a nurses’ station, but need to put their shoes on very quickly when there’s a code blue alarm.

From Fortune

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