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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Should Be The TSH Level In Blood During Pregnancy?

I am 17 week pregnant, current on 50mcg levothyroxin to treat my hypothyrodism.Last month my TSH was 2.68 mIU/L that was normal and this month i get it tested again TSH is 4.12 mIU/L. T3 is 16pmoI/L and T4 is 4.4pmoI/L. I am really worried and i read on internet that TSH range in second trimester should be below 2.95. Please suggest me what should i do Should i increase dose-How much? What is normal range during second trimester? Please reply soon Thank you so much!! http://www.babycenter.ca/thread/0000/thyroid-level-need-suggestions#ixzz37ewWFaNP
Tue, 21 Jul 2015
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Hematologist 's  Response
Hi Dear
The cut off range for TSH in 2nd trimester is between 0.2 to 3.0 mIU/ml and since you are on levothyroxine and the TSH value is 4.12mIU/ml i will recommend you to consult an endocrinologist to go for dose adjustment of levothyroxine and TSH control.
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What Should Be The TSH Level In Blood During Pregnancy?

Hi Dear The cut off range for TSH in 2nd trimester is between 0.2 to 3.0 mIU/ml and since you are on levothyroxine and the TSH value is 4.12mIU/ml i will recommend you to consult an endocrinologist to go for dose adjustment of levothyroxine and TSH control.