by Les Cole | Mar 12, 2015 | Hyperthyroid, Hypothyroid, Natural Medicine, Thyroid
Before discussing the tests, we need to cover a few definitions: T3 (triiodothyronine) – this is the active thyroid hormone. rT3 (reverse T3) – an inactive form of T3 that blocks active T3 from reaching its receptors T4 (thyroxine) – this is the pro-hormone that is...