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A member asked:
Does normal (1.01) "thyroxine (t4) free, direct, s, " normal (0.931) "tsh, " and low (67) "triiodothyronine (t3)" = synthroid dose good? or go up/down?
A doctor has provided 1 answer
Thyroid tests: The tsh, and secondarily the ft4, are normally used to guide the dosage of levothyroxine replacement. T3 (liothyronine) is not normally followed for this. There are a number of issues, and you would be best discussing this with your doctor.
Answered 6/25/2018
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Related Questions
A member asked:
Graves and RAI 12 years ago. 125mcg synthroid (thyroxine). All levels normal. 6 years ago TSH dropped to 0 and Free T3 & T4 low normal. TSH won't increase?
A doctor has provided 1 answer
A member asked:
If my TSH and T4 are high and free thyroxine is normal...but T3 (liothyronine) uptake is low, should I take synthroid my dr prescribed?
A doctor has provided 1 answer
A member asked:
On my thyroid panel blood test, my T4. T3 (liothyronine) uptake, Free Thyroxine Index are normal. But, my TSH is too low. Whats that mean?
A doctor has provided 1 answer
A member asked:
TSH 1.160 (0.091 in 9/2022) T4 9.7, T3 uptake 21, Free T3 3.6, Free Thyroxine Index 2.0, NP wants to start on low dose Levothyroxine due to low T3 uptake, even though others levels WNL. Should I start taking it or not? 31, female, fatigue, wt gain?
2 doctors weighed in across 2 answers
A member asked:
On 25mcg synthroid, (thyroxine)TSH reduced frm 4.67 to 4.57; Free T4 1.2; T3 103.Doc increased dose to 50mcg.I am trying to conceive.Is it ok?
A doctor has provided 1 answer
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