Renal plasma flow: measurement and control; filtration fraction Flashcards
1
Q
What is renal plasma flow
A
Amount of plasma that perfuses the kidneys per time
2
Q
What is RBF
A
Renal blood flow
3
Q
Why would we want to know about RBF and RPF
A
Because they are both indicators of renal health (as well as GFR)
4
Q
What can RPF be used to estimate
A
RBF
5
Q
What is an appropriate way of estimating RPF
A
Mass excreted= mass delivered to kidneys
6
Q
What substance can be used to estimate RPF
A
(clearance of) PAH (para-aminohippuric acid
7
Q
How to use PAH to measure RPF and why
A
Inject PAH intravenously. PAH is freely filtered and secreted. Provided it is used in small concentrations, nearly all of it is secreted into the Proximal tubule
