Need thyroid test advice. Got the following lab results:
TSH, 2.55
FreeT4, 1 (range .7-1.5)
FreeT3, 195 (range 80-178)
Ferritin, 26 (range 11-307)
I am not on any meds for thyroid now. With my FT4 close to mid-range, which I've read is optimal, but T3 and TSH high, what does this mean?
Thank you!
Lisa
Interpretation of Thyroid Labs
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Hi Lisa,
Your TSH appears to be in mid-range, based on the normal ranges used by some labs (such as the one used by my doctor), but it may not be for the lab you used.
If it is indeed high (for the normal range of the lab you used), then it appears that either the test results were somehow corrupted, or you have a rare condition known as thyroid hormone resistance (which is very unlikely). At any rate, those numbers would indicate a feedback problem (corruption) with your hypothalamic–pituitary–thyroid axis that interferes with the thyrotropin releasing hormone (TRH) produced by the hypothalamus being able to downregulate the pituitary's production of thyroid stimulating hormone (TSH). As long as the TSH remains relatively high, the body will continue to convert Free T4 into Free T3.
You might need to repeat the test, because sometimes thyroid tests produce erratic results.
You're very welcome,
Tex
Your TSH appears to be in mid-range, based on the normal ranges used by some labs (such as the one used by my doctor), but it may not be for the lab you used.
If it is indeed high (for the normal range of the lab you used), then it appears that either the test results were somehow corrupted, or you have a rare condition known as thyroid hormone resistance (which is very unlikely). At any rate, those numbers would indicate a feedback problem (corruption) with your hypothalamic–pituitary–thyroid axis that interferes with the thyrotropin releasing hormone (TRH) produced by the hypothalamus being able to downregulate the pituitary's production of thyroid stimulating hormone (TSH). As long as the TSH remains relatively high, the body will continue to convert Free T4 into Free T3.
You might need to repeat the test, because sometimes thyroid tests produce erratic results.
You're very welcome,
Tex
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