I'm 35 weeks pregnant. I have Hashimoto's disease found during this pregnancy. TSH was not very large. I am under the supervision of an endocrinologist from the beginning and take Euthyrox (dose 25). Every month I test TSH and FT4 and today, during my visit to the doctor, it turned out that I should do the tests without taking the Euthyrox given before the blood sampling, and I always took it because no one had mentioned before that I shouldn't take it. The results have always been okay, but now I am terrified that throughout the entire period of pregnancy, the results could have been skewed and this could have had an impact on the baby's development. The attending physician reacted quite ambiguously to the information that I always took Euthyrox.
I advise you to just repeat the test without Euthyrox, regardless of when the previous one was done. Eutyrox is thyroxine and may indirectly reduce TSH secretion. If your FT4 concentration was within the normal range in all the tests, you don't have much to worry about.
Remember that our expert's answer is informative and will not replace a visit to the doctor.
Barbara GrzechocińskaAssistant professor at the Department of Obstetrics and Gynecology at the Medical University of Warsaw. I accept privately in Warsaw at ul. Krasińskiego 16 m 50 (registration is available every day from 8 a.m. to 8 p.m.).
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