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Free T3, free T4 test.

2018-11-27 09:25:18
Are these test required fasting or can be giving at the any time. Plus , Are Total (t3, t4) are different from Free (t3 t4) tests?
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Yes and the test has to be done in the early morning with over night fasting and yeah freet3 t4 are different from bound t3t4 and it decide how good ur thyroid is working

Answered2018-11-27 17:44:47

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Fasting samples are better. T3,T4 & Free (unbound) T3T4 have different normal values.

Answered2018-11-27 11:40:53

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Yes... Total T4 is different Actual values are seen by free T4 Fasting not necessarily... But timing of test ideal is 6 to 7 am

Answered2018-11-27 09:33:15

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