TSH during pregnancy

[sman139]

My Wife is 8 weeks pregnet now. She is taking medication from past 2 yesrs for Hypothyroism. First week of pregnancy  her TSH level was 0.9 and when the tested the TSH yesterday (8 week) is 5.1 and doctor increased medication immediately. I am really worrying will it affect the baby or is already affected. Can some one please answer me. Thanks.

[Super_sally888]

Very glad to hear it, and that I could help.

Best wishes to you and your wife.

[sman139]

Thanks Sally. Your message gave me lot of relief to me. My wife's FT4 is 1.22 (Range 0.6-1.7), which is in control.

[Super_sally888]

Hi,

your doctor was correct to increase the thyroid meds.  

Your wife needs to be tested every month from now until the end of pregnancy.  It is normal that thyroid meds need to be increased during pregnancy.  Ask the doctor to test TSH, FT3 and FT4.  The T4 should also be at the top of the reference range (if it's not the meds need to be increased), regardless of whether TSH is high or low.

Anyway, I think your baby should be fine. The level was fine at week 1 sot that's a very good start.  5.1 is higher than ideal, but is not that high, and the increase in meds is appropriate.

When I was pregnant I got to increase my thyroid meds every month for the first 6 months... I now have a perfect, healthy and very bright 1 yo.

Congratulations and best wishes