Kidney Function Test Bun Levels. Generally a high blood urea nitrogen level means your kidneys aren t working well. Urea nitrogen levels tend to increase with age.

Blood urea nitrogen bun. Blood and urine tests show how well the kidneys are doing their job and how quickly body wastes are being removed. Blood urea nitrogen bun level is another indicator of kidney function.
The common items in this test include urine sample urine specific gravity urinary sediment examination creatinine blood urea nitrogen non protein nitrogen.
And 97 to 137 ml min. Blood urea nitrogen bun level is another indicator of kidney function. Also it s standard for a bun test to be given when you re in. In males normal levels may vary slightly between labs.