In a message dated 1/29/03 8:56:24 PM Pacific Standard Time,
[log in to unmask] writes:

<< TSH is worthless as an indicator of thyroid status,
 especially with Hashimoto's.  >>

I know this to be true as well -- from my own experience.

However, is there a good scientific explanation why that is so?  My guess is
that the TSH measures what's in the bloodstream, but not what's getting to
the cells; also, it does not tell you about any resistance to thyroid hormone
or whether one's T4 is being converted in sufficient quantity to T3.

-Edward

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