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A member asked:
If t3 (liothyronine) is converted from t4 inside the cell, how can they measure the free t3 (liothyronine) in the blood test?
A doctor has provided 1 answer
Similar to free T4: Both T4 and t3 (liothyronine) circulate in bound and free forms after formation in the thyroid (t4) and peripheral (t3 (liothyronine)) cells. The free t3 (liothyronine) can be measured but the results are much lower and less meaningful than free t4.
Answered 10/4/2015
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Related Questions
A member asked:
Recently I had a thyroid related blood test, where my tpoab was 210, tg ab 34, TSH 5.10 , free T3 (liothyronine) 1.00, free T4 1.94. Could it be related to stress?
A doctor has provided 1 answer
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My daughter is 13 has a high TSH but normal T3 (liothyronine) t4. She has low IgA and white blood cell count of 57, 000 with chronic pain in left flank
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Is a thyroid issue always diagnosed from certain blood tests? T3 (liothyronine) and t4
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Blood test: I have a low MCV, low mch and high rdw. I have euthyrodism- T3, (liothyronine) T4 & S-TSH fine bt my SHBG is high at 198.5 what does it mean?
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A member asked:
My doctor only did a blood test for TSH i asked for T3 (liothyronine) T4 to but she said she will order more test if something is abnormal?
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