3 Urinary calculations Flashcards
0
Q
Renal Clearance
A
C= Ux (UF)/Px
Clearance is urine concentration) X (urine flow rate)/ (Plasma concentration
1
Q
Urine flow rate
A
Urine volume/ collection time
2
Q
Free water clearance
A
C(H2O) = UF - Osmolar clearance
Amount of free water excreted from kidney
3
Q
Renal excretion rate
A
excretion = Ux (UF)
urine concentration X urine flow rate
4
Q
Fractional renal excretion
A
excreted load/filtered load
or
UF(Ux)/GFR(Px)