Thyroid function tests are of great interest to mental health clinicians because abnormal thyroid function can affect mental health and psychotropic medications can affect thyroid function. 1. Abnormalities of thyroid function can cause psychiatric symptoms, e.g., depression, fatigue, etc. 2. Abnormal thyroid function can affect response to some psychotropic medications, e.g., antidepressants 3. Abnormal thyroid…