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What is the radioactive material used in Resting NVGs?
For those of you that don't know, a resting NVG is a form of heart scan. The technicians remove a sample of blood via an IV - then expose the sample to a particular radioactive material.
I'm curious to learn more about the radioactive substance that is used. I've Googled it and tried Wikipedia without any results. In particular, I'm curious as to the length of its halflife.
1 Answer
- AidenLv 41 decade agoFavorite Answer
99mTc-labeled human serum albumin is used in nuclear ventriculography (NVG). You can read about the radioisotope (Technetium-99m) here http://en.wikipedia.org/wiki/Technetium-99m
The plasma t1/2 (~35 days) is the same as albumin and is something completely different to the gamma emission t1/2 (which is ~6 hours). In any case, if you're wondering, the radiation is a tiny amount and is detectable in your body for just over a day (30-36 hours).
Source(s): Registered Nurse (chemistry degree -- I worked in Nuc. Med through university).
