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. Author manuscript; available in PMC: 2013 Dec 3.
Published in final edited form as: Physiol Rep. 2013 Aug 22;1(3):e00034. doi: 10.1002/phy2.34

Table 3.

A comparison of model predictions with and without active urea secretion. Differ ences in model predictions are given as percentage of values computed without active urea secretion.

Urine Without urea
secretion		 With urea
secretion		 Difference
Urine composition
Osmolality (mosm/(kg H2O)) 1077 1195 +11.0%
Uurea (mM) 388 591 +52.3%
UNa (mM) 298 251 −15.8%
UNR (mM) 82.3 87.2 −6.0%
Excretion rates
Flow rate (nl/(min·nephron)) 0.0854 0.0863 +1.1%
Osmole (pmol/(min·nephron)) 92 103 +12.0%
Urea (pmol/(min·nephron)) 33 51 +54.5%
Na+ (pmol/(min·nephron)) 25 22 −11.9%
NR (pmol/(min·nephron)) 7.03 7.53 +7.11%