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?

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.

Related Questions

Tsh=2.11/t3 uptake=30.3/free t3=3.3/thyroxine=9.2/triiodothyronine=102.4/ everything is normal. Why do I still feel extremely tired and irritable?

Thyroid level normal. Many people feel tired and irritable. Most of these people have no problem with their thyroid. You need to look for other causes for your symptoms, as they are not due to a thyroid problem. Read more...
Reverse T3 (liothyronine) RT3 was not checked. A TSH of 2 is suspicious. More info on http://drfairchild.blogspot.com/2012/12/proper-thyroid-testing.html. Read more...

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?

Yes. Your tests indicate you have a hypo active thyroid and should take replacement. While you may need to take this treatment for long, you need to get these repeated annually to adjust your meds. Read more...

Person with normal Total T4, T3 (liothyronine) Uptake, FTI, Ultrasensitive TSH but LOW Total T3 (liothyronine) (63.55 ng/dl) = Synthroid dose needs to increase?

It's OK. Hi. Your TSH is "normal", but I'd shoot for a value on therapy generally around the 1.0-1.5 range. The total T4, T3 (liothyronine) resin uptake, and FTI are prehistoric tests no one in the thyroid field has used for years. Your body regulates conversion of T4 to T3 (liothyronine), so your T3 (liothyronine) should be just what the body ordered. Your T3 (liothyronine) is close to the normal range; if you repeat it it's likely to be within normal range. Read more...