This panel contains the following tests:

·         Thyroid-Stimulating Hormone (TSH) - Evaluates overall thyroid function

·         Total Thyroxine (T4) - Measures the total amount of T4 produced by the thyroid gland

·         Free Thyroxine (T4) - Measures the amount of T4 available to the cells and tissues

·         Free Tri-iodothyronine (T3) - Measures the amount of T3 (the active form of the hormone) available to the cells and tissues

·         Reverse T3 - Measures the non-functioning form of the active hormone T3

·         Antithyroglobulin antibody (ATA) - Often measured along with TPO, these antibodies can attack proteins involved in the production of thyroid hormones rendering them dysfunctional

·         Thyroid Peroxidase antibody (TPO) - Often measured along with ATA, these antibodies can attack proteins involved in the production of thyroid hormones rendering them dysfunctional