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You are here : 3-RX.com > Medical Encyclopedia > Tests and Exams > BUN: Results and Values
      Category : Health Centers > Digestive System

BUN

Alternate Names : Blood Urea Nitrogen

BUN | Preparation & Expectations | Results and Values

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:

  • liver failure
  • a diet too low in protein
  • malnutrition
  • overhydration, or too much fluid in the body
  • Levels higher than normal may indicate:

  • congestive heart failure, or heart disease
  • starvation
  • eating too much protein
  • gastrointestinal bleeding
  • burns
  • dehydration, or not having enough fluids in the body
  • myocardial infarction, or heart attack
  • kidney disease
  • kidney failure
  • shock
  • obstruction of the urinary tract

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    BUN: Preparation & Expectations

     

    Author: David T. Moran, MD
    Reviewer: H. William Kelly, PharmD
    Date Reviewed: 04/17/01



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