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A 32-year-old female asked:

I have an slightly elevated t4 and occasional heart palpitations. tsh and t3 (liothyronine) are normal. what could this be? should i worry?

2 doctor answers4 doctors weighed in
Dr. Melissa Young
Endocrinology 10 years experience
Probably nothing: Is that a total or free t4? A high total means nothing. On rare (very rare) occasions, people can have an abnormally high free t 4 and a normal TSH and have either secondary hyperthyroidism or central thyroid hormone resistance. But almost always if the TSH is normal the thyroid is fine.
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Dr. Derrick Lonsdale
Preventive Medicine 74 years experience
Sounds like: Simple iodine deficiency since T4 has to be iodinated to formt3. There is a pill called iodoral, that is the modern equivalent of lugol's iodine.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated May 2, 2016

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