urea clearance

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. 2011.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • blood-urea clearance — urea c …   Medical dictionary

  • urea kinetics — the movement of urea in the body and its excretion through the kidneys or dialysis apparatus. See also urea kinetic modeling, under modeling, and urea clearance, under clearance …   Medical dictionary

  • 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

  • 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

  • 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

  • urea kinetic modeling — the tracing of urea kinetics during hemodialysis, considering urea as a representative medium sized molecule whose clearance is similar to that of other more toxic substances. A series of mathematical equations are used, taking measured serum… …   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

  • 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

  • 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

  • Cu — • urea clearance …   Dictionary of medical acronyms & abbreviations

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”