Hi, I have an overactive thyroid due to Graves’ disease. I did a blood test this morning and just received the results (private healthcare really is amazing!), I would really appreciate if someone could please help me interpret them:
TSH 0.00 mlU/L (0.3 - 5)
FT3 7.0 pmol/L (3.6 - 10.4)
FT4 23.2 pmol/L (7.5 - 21.1)
My FT3 is under control, yay! It was 46.1 only a month ago, and I was convinced I was going to die of a heart attack any second. Very pleased that’s controlled now.
I’m confused as to why my FT4 is still high? And why do I still have 0 TSH?
I was on a high dose of carbimazole (40mg in the morning, 40mg at night), and am guessing I now need to decrease it to avoid going hypo. Or should I wait until my T4 is normal too, before decreasing the carbimazole? When can I expect my TSH to increase?
Of course I’m going to see my doctor about this, but I’d like to be able to interpret my own results too. Thanks in advance
The body and cells take longer to recover - so they are playing catch up with your blood results.
TSH again takes longer to settle at a new level so it is playing catch up. Having said that some hyperthyroid patients never see their TSH get back into range. It can just stay suppressed.
I would imagine that your doctor will start tapering off the carbi.
Thank you for your insight
Very interesting to hear about the TSH being slower and possibly remaining suppressed. I have Graves too and my TSH just won't move up. But, my T3 and T4 are within normal range now with the help of Tapazole.