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Let me preface my response by saying you should always check with your physician first and have them interpret any lab results; however, having lived with Thyroid Disease for 32 yrs .(was diagnosed at 15 yrs.) I've learned LOW T3 results may be indicative of Hypothyroidism (under-active
thyroid, slower metabolism).
A normal range is usually between 80 to 220 so if you are below 80 you should have further testing or discuss with physician. A simple blood test is all that is needed and you should fast if possible. If you are going to have blood work done make sure you test for TSH, T3 Total, and T4. You may as well check it all since you are having the blood drawn anyway. Note: sometimes testing the T3 is extra. I paid $16 more to have my T3 tested and it was well worth it as I found out my levels were significantly low.
Good luck!
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∙ 11y ago
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What is the significance of a high T3 thyroid blood test mean?
According to the American Thyroid Association, T3 (Triiodothyronine) tests are useful in diagnosing hyperthyroidism and the severity of it. This is because patients who are hyperthyroid have an elevated T3 level.
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