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Thyroid level and pregnancy
by Jess800, Sep 17, 2009 07:16PM
Hi there-
I am almost 6 weeks pg after IVF. I am on progesterone and estrogen support. I have been on Synthroid for 8 years after thyroid rermoved for Graves. I went to my endo today and he said my free T4 was perfect (1.2) but my TSH was high (7. something) . He said he did not want to change my dose yet and to come back in 4 weeks. My dose is 150. I am nervous though because doesn't a high TSH mean I don't have enough thyroid. He claims the free T4 is more accurate?? By the way I am carrying twins.
Doesn't it seem like a lot could change in 4 weeks- I don't want to take any chances??
I am almost 6 weeks pg after IVF. I am on progesterone and estrogen support. I have been on Synthroid for 8 years after thyroid rermoved for Graves. I went to my endo today and he said my free T4 was perfect (1.2) but my TSH was high (7. something) . He said he did not want to change my dose yet and to come back in 4 weeks. My dose is 150. I am nervous though because doesn't a high TSH mean I don't have enough thyroid. He claims the free T4 is more accurate?? By the way I am carrying twins.
Doesn't it seem like a lot could change in 4 weeks- I don't want to take any chances??
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in my experience it would be normal to dose based on both FT4 and TSh. If your TSH is 7 then I would increase. i think they target TSH during pregnancy around 1.0 and FT4 should be top of the normal range. Yes, reassuring that FT4 is ok (but what is the range) - it should be in the upper 1/2 of normal range), but important to keep adjusting.
My endo said that FT4 is more accurate, but only when TSH is very low (it can go very low in pregnancy, without it being a problem, as long as FT4 is normal range). If TSH is high, of course a small change would be warranted.
Have you had any increase in your thyroid meds yet? Normally endo's would give an increase as soon as you know you're pregnant.
An increase at this stage definitely wouldn't hurt given that you are going to need to increase regardless as the pregnancy goes on. I believe that risk is pretty low, but also share your feeling of not wanting to take any chances.