code blue

noun, often capitalized C&B

Medical Definition of code blue

: a declaration of or a state of medical emergency and call for medical personnel and equipment to attempt to resuscitate a patient especially when in cardiac arrest or respiratory distress or failure summoned by emergency Code Blues, doctors had brought her back to life more than once— Bill Bryan also : the attempt to resuscitate the patient

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“Code blue.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/code%20blue. Accessed 11 Aug. 2020.

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