I had RAI 6 weeks ago for Graves Disease. Before the RAI my TSH was .02 and T4 was 36. I just had the blood tests you are supposed to have after 6 weeks, and my T4 level is now 56.6! I suspected it was really high again as I had the heart palpitation bad this week. Do you think the RAI didn't work? is it too soon? isn't a level of 56.6 dangerous?
thanks