A member asked:

I have a high tsh but normal t4 levels, what does this mean?

A doctor has provided 1 answer
Dr. Robert Lang answered

Specializes in Internal Medicine - Endocrinology

Hypothyroidism: The TSH test is10 times more sensitive for the diagnosis of hypothyroidism that the t4. The TSH is reported on a log scale so that small changes in the TSH value are caused by relatively big changes in the blood level. This is a reflection of the pituitary being extremely sensitive to change in the T3 (liothyronine) level if you have symptoms it would be wise to seek treatment.

Answered 4/4/2018

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What does normal tsh, but high free T4 mean?

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