in vivo labeling Flashcards
1
Q
steps to in vivo labeling kit
A
dissolve commercial PYP kit w saline and then inject portion of kit into patient (amount depends on amount of stannous ions present). wait 20 min post inj so stannous ion can mix fully with blood and then inj desired amount of Tc pertechtenate where it will take 10 minutes for RBC to be labeled
2
Q
why would we use in vivo labeling
A
for jehovah witnesses
3
Q
How much of Tc binds to the RBC?
A
abou 80%
4
Q
what organs uptake during in vivo?
A
gi system, thyroid, salivary glands
5
Q
why cant we use in vivo for gi bleed
A
because of substantial uptake in gi system already
