COMBINED PSW I and 2 Flashcards
0
Q
Px
A
concentration of x in the plasma
1
Q
RPF
A
renal plasma flow
2
Q
V
A
urine flow rate
3
Q
Ux
A
concentration of substance x in the urine
4
Q
using the Fick principle: RPF=
A
UxV/ (Pxa-Pxv)
5
Q
Rate of Filtration (Fx)=
A
Plasma concentration (Px) x GFR
6
Q
Rate of excretion (E)=
A
UxV
7
Q
Rate of reabsorption (R)=
A
F-E
8
Q
Rate of secretion (S)=
A
E-F
9
Q
Fraction excretion (FE)=
A
E/F
10
Q
Fraction reabsorption (FR)=
A
1-E/F
11
Q
Clearance (C)=
A
UV/P
12
Q
Clearance definition
A
the volume of plasma cleared of a substance per unit of time
13
Q
what substance is completely excreted? What can we say about it?
A
Inulin, F=E
14
Q
what do we use in the clinic to measure GFR?
A
creatinine
