A 37-year-old female asked:
does a very low level tsh hormone mean hypo - or hyperthyroidism? t3 (liothyronine) is normal range, t4 is at the low level borderline.
1 doctor answer
Dr. David Sneid answered
40 years experience Endocrinology
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.
Answered on May 18, 2018
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