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A member asked:
Why don't dr test free t3 (liothyronine) and free t4 when testing thyroid? this is how you accurately diagnose thyroid prob? right
A doctor has provided 1 answer
TSH is key: If it is just a simple screening of your thyroid function, doing a TSH is the most sensitive test for picking up problems. If the TSH is abnormal, then the free T3 (liothyronine) and T4 are performed to further clarify what type of problem exists with the thyroid. If the TSH is normal, then a T3 (liothyronine) and T4 are not usually performed.
Answered 11/1/2014
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Related Questions
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Thyroid testing results. Free T4 1.10, Free T3 (liothyronine) 2.7, TSH 0.313, TSI 49. Normal or not? See endocrine dr Wednsday.
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