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Hickory Hills, IL
A 28-year-old male asked:

My thyroid stim.hormone value is 1.680? is that good or bad? should i ask for a t3 (liothyronine) t4 test just to be sure cause i heard the tsh isnt always accruate?

1 doctor answer2 doctors weighed in
Dr. Alan Feldman
Endocrinology 41 years experience
TSH accurate: Tsh is the most sensitive indicator of thyroid function. If it is normal (as yours is), it is highly unlikely that you have a problem with your thyroid. There are rare problems of the pituitary gland in which the TSH is not an accurate test. In that case a free T4 level is helpful. Despite what you may read on the internet, T4 and t3 (liothyronine) levels are usually only helpful if the TSH is abnormal.

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Last updated Oct 1, 2019

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