Related Questions

Does a very low level TSH hormone mean hypo - or hyperthyroidism? T3 (liothyronine) is normal range, T4 is at the low level borderline.

Low TSH. Generally indicates an excess in thyroid hormone. That may be chronic w/hyperthyroidism -- or temporary w/thyroid inflammation. See you doctor. If you're already on thyroid replacement, the dose is too high. If you're on t3, (liothyronine) get off of it as it can be dangerous and doesn't work well as chronic replacement. Use brand name T4 only. 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...

T3 (liothyronine) uptake and T4 thyroxine and free T4 index are normal, but TSH is4.65 and per the lab that is high. The highest normal is 4.5. What does this mean?

Subclinical. Lab results are consistent with a diagnosis of subclinical hypothyroidism representing very mild and early case of hypothyroidism. I would recommend repeating your blood test first. If these results are confirmed many doctors would recommend thyroid replacement although there is some controversy about the need for treatment. If no treatment thyroid function test should be rechecked in the future. Read more...
Once - Nothing! Any symptoms? Sublinical hypothyroid or nothing. This is an odd combo of tests as T4 & FTI essential measure the same thing. Your TSH is just above normal & there is sometimes variability in the test. I would suggest, repeat testing by an endocrinologist about 2 weeks after this one, with antithyroid antibodies. If (+) closer monitoring, if (-) less close f/u. Fam Hx also important. Don't worry! Read more...

I am 39yrs taking thyroxine 100mcg 1 tab since 5 years. Now TSH 0.22 miu/ml., total t3, (liothyronine) T4, freet4, ft4 (serum) are normal. Which medicine should I take?

Thyroxine dose. Was your TSH normal before, and now it is low? Over the years, your dose requirements for thyroxine can change, which is why a TSH should be checked periodically. Another possibility: the brand of thyroxine changed. Pharmacies sometimes switch people between different brands to save a few pennies, and there are difference in bioavailability which can affect tsh. Read more...