The Comprehensive Thyroid Assessment is a hormone test that provides a thorough analysis of thyroid hormone metabolism, reveals imbalances that often go undetected with more limited assessments. It includes central thyroid gland regulation and activity, thyroid production and secretion, peripheral thyroid conversion, and thyroid autoimmunity. This hormone test allows us to pinpoint common imbalances that underlie a broad spectrum of chronic illness, including fatigue, depression, heart disease, diabetes, obesity and fertility problems. This test analyzes serum levels of TSH, free T4, free T3, reverse T3, anti-TG antibodies, and anti-TPO antibodies to assess central and peripheral thyroid function, as well as thyroid auto-immunity.