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A member asked:
Normal tsh but low free t4? whats th3 difference between these 2 test? do i have a thyroid problem?
A doctor has provided 1 answer
Reproducible?: Hi. Is the lab profile with normal TSH and low free T4 reproducible? The labs should be repeated. If the free T4 was just below the normal range, and on repeating it's in the normal range, then your thyroid function is normal. If free T4 is significantly low and TSH is normal, that suggests pituitary disease affecting the pituitary cells that make TSH. Good luck!
Answered 8/9/2018
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We have case , femal patien , age 60 years, the TSH less than 0.05 while T4 in normal range , and she has not any symptom of thyroidism , is it ok ?
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