A member asked:

What causes rise in both tsh & ft4. tsh gone from 4.8 to 0.8 then 2.47. ft4 was 16.8, 20.3, 22.4 in 5 months. levo inc to 125 when tsh was 4.8.

A doctor has provided 1 answer

Pituitary: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Talk to the doctor who ordered the tests. Having said that, rise in both TSH and ft4 suggests a lesion in the pituitary or an ectopic source of TSH .

Answered 4/4/2019

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