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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.

Dr Balin agreed

Answered 1/15/2015

5k views

Thank

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:

My doctor just called and told me my thyroid is overative and the T3 (liothyronine) is twice has high and T4 is normal. And that was it. What does it mean? Should I change something? how do I get it back to normal?

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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