Alternate Names : Blood Urea Nitrogen
What do the test results mean?
Normal values for BUN are 7 to 20 milligrams per deciliter (mg/dl) of blood.
Levels lower than normal may indicate:
a diet too low in protein
overhydration, or too much fluid in the body
Levels higher than normal may indicate:
congestive heart failure, or heart disease
eating too much protein
dehydration, or not having enough fluids in the body
myocardial infarction, or heart attack
obstruction of the urinary tract