Thyroid Testing
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The pituitary response is abnormal. Stop TSH worship.
After oversimplifying T4 conversion as if it only converts into T3 (see Part 1 of this post), Canada’s endocrinology association make the claim that: “Intracellular T3 levels regulate pituitary secretion and blood levels of TSH, as well as the effects of thyroid hormone in multiple organs.” (1) This may be partially true, but it is…
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No, T4 does not always convert to enough T3.
“T4 is converted into T3 at the cellular level in virtually all organs” This is what Canada’s endocrinologists claim at the opening of their statement under their recommendation “Don’t use Free T4 or T3 to screen for hypothyroidism or to monitor and adjust levothyroxine (T4) dose in patients with known primary hypothyroidism.” What does this…
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The blindness of TSH to the most powerful thyroid hormone.
Standard therapy for hypothyroidism today is built on a myth of TSH omniscience. “Thyroid stimulating hormone (TSH) is the most sensitive and specific test for the investigation and management of primary thyroid dysfunction” (1) If TSH is so “sensitive,” then why is TSH completely blind to blood levels of the most powerful thyroid hormone, T3,…
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2018 study shows T3 in upper half of reference range relieves hypothyroid symptoms
This Sept. 2018 research article proved that thyroid patients’ continued hypothyroid symptoms are connected to Free T3 levels.(1) Symptom relief for thyroid patients on the standard T4 monotherapy is found “in the upper half of the FT3 reference range.” Symptoms had a limited and paradoxical relationship with TSH, and absolutely no relationship to a patient’s…
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Abbott Laboratories’ reference range normalizes lower Free T3
In late 2018, in Ontario, Life Labs changed its reference range for Free T3 (Triiodothyronine) thyroid lab tests. In our closed Canadian Thyroid Support Group where patients share their lab results and therapy progress over time, this particular Free T3 test has been behaving strangely so far, especially comparing changes from the old assay to the…