blood urea nitrogen

noun

Medical Definition of blood urea nitrogen

: bun Diarrhea and dehydration can wreak havoc with these ions, but two other blood test results were even more worrisome: the BUN (blood urea nitrogen) and creatinine.— Mark Cohen, Discover, December 2002

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Cite this Entry

“Blood urea nitrogen.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/blood%20urea%20nitrogen. Accessed 24 Sep. 2021.

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