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BUN Blood Test

Blood Urea Nitrogen, Urea
Sample Report
Specimen Type: Blood


BUN Blood Test

This test measures Urea Nitrogen in the blood.  Urea is a waste product produced by the liver during the breakdown of proteins.  It is made up of several components including nitrogen.  Urea is filtered through the kidneys along with other waste products and removed from the body in the urine.  Abnormal BUN levels can be indicative of problems affecting the liver and/or kidneys.

BUN is commonly tested as part of routine general health screening.  It is included as part of a Basic Metabolic Panel (BMP), Comprehensive Metabolic Panel (CMP), or Renal Function Panel.  BUN is also ordered, commonly with a Creatinine test, when someone is experiencing symptoms of kidney disease. 

Turnaround time for the Urea Nitrogen test (BUN test) is typically 1 business day.

Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.


The Urea Nitrogen test (BUN test) has no fasting requirements.



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Offer expires December 14, 2016.


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