- blood-urea clearance
- urea c.
Medical dictionary. 2011.
blood-urea clearance
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urea clearance — clearance of urea from the blood, by either renal clearance or hemodialysis; the efficiency, or fractional urea clearance, of one hemodialysis session is expressed by the formula Kt/V (q.v.). See also urea kinetic modeling, under modeling … Medical dictionary
Blood urea nitrogen — The blood urea nitrogen (BUN) test is a measure of the amount of nitrogen in the blood in the form of urea, and a measurement of renal function. Urea is a substance secreted by the liver, and removed from the blood by the kidneys.PhysiologyThe… … Wikipedia
clearance — 1. (C with a subscript indicating the substance removed)Removal of a substance from the blood, e.g., by renal excretion, expressed in terms of the volume flow of arterial blood or plasma that would contain the amount of substance removed per … Medical dictionary
Blood plasma — is the straw colored liquid component of blood in which the blood cells in whole blood are normally suspended. It makes up about 55% of the total blood volume. It is the intravascular fluid part of extracellular fluid (all body fluid outside of… … Wikipedia
Clearance (medicine) — In medicine, the clearance is a measurement of the renal excretion ability. Although clearance may also involve other organs than the kidney, it is almost synonymous with renal clearance or renal plasma clearance. Each substance has a specific… … Wikipedia
Urea reduction ratio — For the Scottish river see: Urr Water The urea reduction ratio (URR), is a dimensionless number used to quantify hemodialysis treatment adequacy.DefinitionURR = frac{U {pre} U {post{U {pre imes 100% Where: * Upre is the pre dialysis urea level *… … Wikipedia
Reference ranges for blood tests — Reference ranges edit in: blood urine CSF feces Reference ranges for blood tests are sets of values used by a health professional to interpret a set of … Wikipedia
PAH clearance — Parameter Value renal blood flow RBF=1000 ml/min hematocrit HCT=40% renal plasma flow RPF=600 ml/min filtration fraction FF=20% glomerular filtration rate GFR=120 ml/min … Wikipedia
Red blood cell — Human red blood cells (6 8μm) Red blood cells (abbreviated RBCs; also referred to as erythrocytes or simply, as red cells[1]) are the most common type of blood cell and the vertebrate organism s principal means of delivering oxygen (O2) to the… … Wikipedia
renal clearance — n CLEARANCE * * * see clearance * * * 1. removal of a substance from the blood by the kidney. 2. a measure of the rate of such removal; given by the formula C = V Ч U/P, where C is the clearance, V the urine volume in mL/min, U the urine… … Medical dictionary
