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A member asked:
High t3 (liothyronine) and t4 thyroid results but no thyroid disorder. is this normal?
A doctor has provided 1 answer
Check free T4: The most common cause for having a high total T4 and T3 (liothyronine) level, with a normal tsh, is being on a birth control pill. Being on a birth control pill raises binding proteins that affect thyroid levels, but the biologically active thyroid level remains normal. This is best measured by a free T4 level.
Answered 1/15/2015
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Related Questions
A member asked:
Off thyroid meds for about a year. I have symptoms of both hyper and hypo. Last blood test showed very high tsi but normal T3 (liothyronine) & t4. What is going on?
A doctor has provided 1 answer
A member asked:
High TSH (mine 9.58 & standard is0.40-4.5), normal free t4(mine 0.9 & standard is0.8-1.8) or T3 (liothyronine) thyroid (mine2.8 & standard 2.3-4.2) can you help?
A doctor has provided 1 answer
A member asked:
I did a thyroid test and it showed that my free T3 (liothyronine) is high...While my free T4 and TSH is normal. What does it mean to get a high t3 (liothyronine)?
A doctor has provided 1 answer
A member asked:
My father thyroid test is high t4,normal t3, (liothyronine)lowTsH after one month of cordarone treatment ,before that is was normal,what to do for his thyroid?
A doctor has provided 1 answer
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