A 30-year-old male asked:
my wife had tt 2y ago for papillary tumor, took radioactive iodine, on l-thyroxin(200ug).tsh<0.04.t3 (liothyronine) & t4 high normal.now preg.(4)w.how this affect baby?
2 doctor answers
Dr. Ed Friedlander answered
43 years experience Pathology
Good: We want to be very sure that the thyroid hormone levels do not drop low while she's pregnant. I would not be concerned otherwise.
Answered on Dec 2, 2012
Dr. Vasthi Wilson answered
22 years experience Radiation Oncology
No effect on baby: Radioactive iodine will have decayed, no residual radioactivity to affect baby or his development. Low TSH is good oncologically, but not sure how tfts affect pregnant women, would make sure she is seeing an endocrinologist and probably a high risk ob.
Answered on Jun 10, 2014
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