Your doctor may order a blood urea nitrogen test, also known as BUN test, to see how well your kidneys are working. Find out more from WebMD. ... BUN normal values by age and sex ...

Normal BUN values tend to vary depending on gender and age. It’s also important to note that each laboratory has different ranges for what’s normal. In general, normal BUN levels fall in the ...

Blood Urea Nitrogen Test. Normal Lab Value: 7-20 milligrams per decaliter (mg/dl) The BUN, or blood urea nitrogen test, is another way to determine if the kidneys are successfully filtering the blood.

Blood urea nitrogen. Normal range: 7 to 20 mg/dL Higher levels (greater than 20-40 mg/dL) may be suggestive of altered kidney function. Elevated BUN values may also be seen in dehydration, ...

A blood urea nitrogen (BUN) test measures the amount of urea nitrogen in the blood. The result can indicate how well a person’s kidneys are working. A higher than normal level of BUN may point ...