Elements Of Renal Function Flashcards
1
Q
What is a useful esimate of RPF (Renal Plasma Flow)?
A
Para-aminohippuric acid (PAH); Freely filtered and secrete in the proximal tubule
2
Q
The use of PAH for estimation of RPF is best under under what conditions?
A
Low concentration of PAH; otherwise, at high concentrations of PAH, clearance of the substance is decreased and RPF cannot be estimated accurately
3
Q
What is the filtration fraction (FF) ?
A
It is the amount of RPF that is filtered/diverted into the tubule.
FF= GFR/RPF
Normally: 20.0%
