Blood Drug Testing

what does BUN stand for on the clinical chemistry blood test report?

could anyone tell me what does the term "BUN" mean? I would like to know what stand for this term, many thanks.

Public Comments

1. It's Blood Urea Nitrogen. It measures the amount of nitrogen in your blood as urea; an indication of kidney function.
2. Blood urea nitrogen: Nitrogen in the blood as urea. It's an indication of kidney function as your kidneys should be excreting at regular rates to keep it within normal range. It's produced by the breakdown of protein during digestion and other protein metabolism mechanisms. Elevated BUN might mean kidney damage, dehydration, bleeding among other things.