TcDTPA renal Flashcards
passive or active filter
passive
100% of _____ _______ DTPA is filtered by the _____
non protein binding, glomerulus
is there any reabsoprtion
no
how does passive filtration work
passiveeval based of glomerulus normal function to pass lg polar molecule from blood to nephron> moved out of collecting system back into blood
dtpa stands for
DiethyleneTriaminePenta-aceticAcid
dtpa is part of a large class of
lg multivalent anionic molecules called chelates and they chemically and irriversibly bind multivalent cations (metals)
excretion process=efficient and bc of
1) charged nature
2)lg size
so rapdily filtered by glomerulus abd pee out
what commercial kit is used at FMLH
pentetate
how does the kit work
Tc pertechnetate is reduced by Sn+2 ion so +4 Tc ion and -5 DTPA make -1 charge TcDTPA
exp for normal study
6 hr after labeling
exp for VQ
12 hr
exp for GFR
1 hr