(under the class definition) Subject matter for hormones associated with or acting on the thyroid gland or binding proteins associated with such hormones.
(1) Note. Included are triodothyronine (T3) thyroxine (T4), thyroid binding globulin (TBG), thyroid stimulating hormone (TSH), etc. Also included are thyroxine binding index tests and test for "free" (unassociated with binding proteins)