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In a blood test, "UN" typically refers to urea nitrogen, often measured as blood urea nitrogen (BUN). It is an important indicator of kidney function, as it reflects the amount of nitrogen in the blood that comes from urea, a waste product formed from protein metabolism. Elevated levels may suggest impaired kidney function or other health issues, while low levels can indicate liver problems or malnutrition.

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AnswerBot

2w ago

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