Can a low t4 but a normal TSH and t3 is harmful?
This indicates secondary hypothyroidism
Last updated on 22 Jun 2023
TSH stands for thyroid stimulating hormone. A TSH test is a blood test that measures this hormone. TSH levels that are too high or too low may be a sign of a thyroid problem
Last updated on 21 Jun 2023
Free T3 assays are often unreliable and not routinely used to assess thyroid function.
It means you have subclinical hypothyroidism
A thyroid blood test should be taken in the morning
Thyroid Profile Total, Thyroid Stimulating Hormone Total T3 Total T4, Serum Thyroid Profile
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