Blood Urea Nitrogen (BUN)

Description

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What is the Lab Name for Blood Urea Nitrogen (BUN) Lab Values?

Blood Urea Nitrogen

What is the Lab Abbreviation for Blood Urea Nitrogen?

BUN

What is Blood Urea Nitrogen in terms of Nursing Labs?

Blood urea nitrogen (BUN) measures the amount of urea in the blood. When protein is broken down ammonia is formed. Ammonia is converted to urea in the liver and is eventually excreted in the kidneys.

What is the Normal Range for Blood Urea Nitrogen?

7-20 mg/dL

What are the Indications for Blood Urea Nitrogen?

Identifying:
- Liver Problems
- Renal Problems
- Hydration Status
- Tumor Lysis
Evaluate effects of drugs on:
- Liver
- Kidney
Monitor effectiveness of hemodialysis

What would cause Increased Levels of Blood Urea Nitrogen?

Renal Failure
Congestive Heart Failure (CHF)
Myocardial Infarction (MI)
Kidney Disease
Shock
Dehydration
Excessive Protein Intake
Diabetes Mellitus (DM)
Gastrointestinal (GI) bleed
Urinary Tract Obstruction

What would cause Decreased Levels of Blood Urea Nitrogen?

Liver Failure
Over-hydration
Inadequate Protein Intake
Pregnancy

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