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BUN

 
blood urea nitrogen; see urea nitrogen.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

BUN

Abbreviation and acronym for blood urea nitrogen.
Farlex Partner Medical Dictionary © Farlex 2012

BUN

Blood urea nitrogen. A measure of serum urea, a by-product of the breakdown of blood, muscle and protein. Urea is cleared by the kidney; diseases that compromise renal function lead to increased BUN.
 
Increased in
Renal disease, dehydration, CHF, GI bleeding, starvation, shock, urinary tract obstruction (e.g., by tumour or prostate gland).
 
Decreased in
Liver disease, malnutrition or a low-protein diet.
 
Ref range
Women 6–20 mg/dL; men 8–23 mg/dL; SI expresses nitrogen as urea—normal adults, 2.9–8.2 mmol/L; BUN/creatine ratio normally is 20:1.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

BUN

Blood urea nitrogen Nephrology A measure of serum urea, a by-product of the breakdown of blood, muscle and protein; urea is cleared by the kidney, and diseases which compromise the function of the kidney will frequently lead to ↑ blood levels Normal range 7–20 mg/dL ↑ in Renal disease, dehydration, CHF, GI bleeding, starvation, shock, urinary tract obstruction–by tumor or prostate gland ↓ in Liver disease, malnutrition or a low protein diet Ref range ♀ 6–20 mg/dL; ♂ 8–23 mg/dL; SI expresses nitrogen as urea–normal adults, 2.9-8.2 mmol/L; BUN/creatine ratio normally is 20:1. See Azotemia, Uremia.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

BUN

Abbreviation for blood urea nitrogen.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

BUN

Acronym for blood urea nitrogen. This is estimated when kidney function is in question.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Blood urea nitrogen (BUN)

A waste product that is formed in the liver and collects in the bloodstream; patients with kidney failure have high BUN levels.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

BUN

Abbreviation for blood urea nitrogen.
Medical Dictionary for the Dental Professions © Farlex 2012
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Flowers Foods is urging consumers not to eat the recalled hamburger and hot dog buns. The recalled buns should be discarded or returned to the place of purchase for a full refund.
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