Though guidelines suggest screening starts at 50, researcher says it's premature to change them
by sheria on Thu Aug 21, 2008 12:00 AM
by Leemg on Thu Aug 21, 2008 12:00 AM
The thyrogen shots are given while taking your meds. I'm also on Levoxyl and had and will have shots in the upcoming weeks. The shots are enough to stimulate the TSH to measure if your thyroglobulin levels go up. I learned that the TSH is actually produced by the pituatary (sp?) gland. It is responsible for regulating the thyroid. When the thyroid is gone and all thyroid tissue or disease is not present once stimulated by the injections your thyroglobulin numbers should be 0 or under 2. If the number is higher that may mean there is some process remaining that is responding to the stimulation. Kind of interesting. Hope this helps.
by lrquake on Thu Aug 21, 2008 12:00 AM
That means that you still have some thyroid tissue left. I believe I was told by my nuc. med. people that a normal functioning thyroid will uptake like 14-20% (approximately--I am sure the numbers vary) of the I-123. Personally I think my uptake was like a 1.6%. They use the percentage amount of your uptake of I-123 to calculate how much I-131 to use in order to ablate your remaining thyroid tissue--if needed. I think my dosage was about 162 millis.
My TSH level at the time of RAI was 159. When I had my blood tested a few weeks ago it was like a 6.86 or something like that so my synthroid was upped.
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