Thyroid Testing
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Why the Free T3 test matters so much
It is surprising that Free T3 is considered an unnecessary test since it is the most active, most essential thyroid hormone in the human body. The research I outline in this post shows that Lower Free T3 levels in blood correlate with very poor health status both within and beyond “low T3 syndrome” — low…
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Dosing by TSH results in FT3 inequity and health discrimination
The standard measure of thyroid gland health (the TSH normal range) is not a fair or accurate measure of thyroid hormone sufficiency in thyroid therapy. And the same meme, this time with MEN — since men have hypothyroidism too. In a 2015 article, Midgley et al (1) wrote “the effective TSH level derived in a…
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MEMES: Against Table 2 in the “Choosing Wisely Canada” T3 & T4 toolkit
The “Choosing Wisely Canada” toolkit promoting limitation of Free T3 and Free T4 testing has been the food for some meme refutations. Choosing Wisely Canada. (n.d.). Toolkit: Less is More with T3 & T4. Retrieved December 30, 2018, from https://choosingwiselycanada.org/perspective/toolkit-t4-t3/ Recently, we’ve focused on their Table 2 which outlines situations they recommend NOT to order…
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Ubiquitination: The glass ceiling of T4 monotherapy
UBIQUITINATION: This is the “Glass ceiling” of T4 monotherapy — in some patients, there is a biological limit on how much T3 they can get out of treatment with T4 thyroid hormone alone (Synthroid, levothyroxine). Scientists recently explained how D2’s gene (DIO3) is inactivated by rising levels of T4: “Although DIO2 expression is only weakly…
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Our response to Choosing Wisely’s harmful Table 2
Choosing Wisely Canada, together with the Canadian Society for Endocrinology and Metabolism, have collaborated on a harmful toolkit to reduce Free T3 and Free T4 hormone testing in order to save money. As you can see in their Table 2 from page 9 of their toolkit, they want to prevent T3 and T4 testing in…