urea clearance

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u·re·a clear·ance

the volume of plasma (or blood) that would be completely cleared of urea by 1 minute's excretion of urine; originally calculated as urine flow multiplied by urine urea concentration divided by concentration of urea in whole blood rather than plasma, representing blood urea clearance rather than plasma urea clearance.
Farlex Partner Medical Dictionary © Farlex 2012

u·rea clear·ance

(yūr-ē'ă klēr'ăns)
C with a subscript indicating the substance removed; volume of plasma (or blood) that would be completely cleared of urea by 1 minute's excretion of urine.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
"Effective ionic dialysance has been assumed to be equivalent to effective urea clearance because of the similar molecular weight and osmotic distribution volumes of sodium chloride and urea" (Lameire et al., 2009, p.
We need to provide nursing care that complements the patient's own goals and not rely on an adequate prescription for urea clearance. Changes in our care are needed, but may not occur if we avoid the often unrecognized power differences evident in the dialysis environment, where the patient is the least powerful partner in their own care.
The measured urea clearances (K) for 2400 ml and 3000 ml/h substitution fluid flow corresponded well to the predicted urea and creatinine clearances of 30 ml/min and 37.5 ml/min, respectively, calculated as:
Body mass index (P = 0.057), diastolic blood pressure (P = 0.058), and PD urea clearance (P = 0.45) showed no significant trend with increasing cTnT.
The National Kidney Foundation Kidney Disease Quality Outcomes Initiative (NKF KDOQI) identifies urea clearance as a primary measure of dialysis adequacy (NKF, 2015).
Adequacy studies were performed every 3 to 6 months; weekly total urea clearance (Kt/V) and weekly total creatinine clearance/1.73 [m.sup.2] were calculated.
Although many clinicians reject urea clearance as the gold standard, it ubiquitously pervades nephrology clinical care.