(redirected from blood urea nitrogen (BUN))Also found in: Thesaurus, Medical, Legal, Encyclopedia. ni·tro·gen (nī′trə-jən) n. Symbol N A nonmetallic element that constitutes nearly four-fifths of the air by volume, occurring as a colorless, odorless, almost inert diatomic gas,...
blood urea nitrogen see urea nitrogen. blood volume 1. the total quantity of blood in the body; the plasma volume added to the red cell volume. 2. a laboratory test performed to determine this. The indicators used to determine these measurements are 125I-labeled human serum albumin for pla...
Blood Urea Nitrogen Blood urea nitrogen(BUN) is also used to evaluate kidney function because elevations in BUN level are often, but not always, due to aGFRdecrease. Some conditions enhanceurea production, such asgastrointestinal bleeding,corticosteroid therapy, and high-protein diet. In the noncat...
bun (redirected fromblood urea nitrogen) Thesaurus Medical Legal Financial Acronyms Encyclopedia Wikipedia bun1 (bŭn) n. 1. a.An unsweetened round or oblong roll, used especially to hold a hamburger patty or a hot dog. b.A small sweetened roll, often spiced or containing dried fruit. ...
including the red cells. Glucose is conserved and used and is not excreted. Amino acids also are so rapidly transported that the plasma level remains low, although they are required for allprotein synthesisthroughout the body.Urea, an end product of proteinmetabolism, is rapidly excreted by the...
Volume depletion leads to enhanced proximal tubule salt and water retention, thereby increasing the passive reabsorption of urea, leading to a rise in the normal blood urea nitrogen (BUN) to creatinine ratio from the normal level of 10:1 to over 20:1. Factors that alter urea generation ...
Our objective was to determine if blood urea nitrogen (BUN) is related to calculated energy balance (EB) or a measure of tissue mobilization during the periparturient period. Blood samples were collected from 41 cows with varying postpartum EB and analyzed for BUN and nonesterified fatty acids...
2.Objective:To investigate the effect of zinc and selenium on serumblood urea nitrogen(BUN) and the alanine aminotransferase(ALT) activity in serum of rats.目的:探讨锌、硒对大鼠血清中血尿素氮(BUN)含量和丙氨酸氨基转移酶(ALT)活性的影响。
such as the BUN-Cr ratio, which is the ratio of two serum laboratory values, the blood urea nitrogen (BUN) (mg/dL) andserum creatinine(Cr) (mg/dL). An abnormally high BUN-Cr value stipulates renal dysfunction as a result ofkidney stonesor tumours while low BUN-Cr value is indicative ...
A dedicated instrument for the analysis of blood urea nitrogen using an immobilized enzyme reagent - Watson, Keyes - 1976 () Citation Context ...nce and prolonged enzyme stability have been demonstrated by two commercial instruments in which immobilized enzymes are used, Yellow Springs Instruments’...