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Euclid, OH
A 23-year-old female asked:

Thyroid testing results. free t4 1.10, free t3 (liothyronine) 2.7, tsh 0.313, tsi 49. normal or not? see endocrine dr wednsday.

1 doctor answer2 doctors weighed in
Dr. Gurmukh Singh
Pathology 51 years experience
See below: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, your results seem to be in the normal range.
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Dr. William Coutts ii
Family Medicine 28 years experience
You may need to get tested for autoimmune thyroid disorder. Sometimes the standard tests can be normal, testing for elevated thyroid antibodies will reveal autoimmune thyroid problems.
Jun 6, 2015
Dr. Gurmukh Singh
Pathology 51 years experience
Provided original answer
Normal TSH is from about 0.5 to 5.0. The lower the reading the active the thyroid is. TSH is made by the pituitary to drive the thyroid. If the thyroid is sluggish, pituitary makes more TSH, if it is overworking pituitary makes less.
Jun 6, 2015
Last updated Jun 6, 2015


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