Medical professional Dr. Tyrone Malloy practices in Georgia at the Soapstone Center for Clinical Research, where he serves the organization as CEO. medical director, and principal investigator. Most recently, Dr. Tyrone Malloy has conducted extensive research into the symptoms of menopause and women with hypothyroidism. In diagnosing potential hypothyroidism or hyperthyroidism, medical professionals have access to sophisticated thyroid function testing. A range of blood tests measure the body's thyroid hormone levels and thyroid stimulating hormone (TSH) levels. Initially, a TSH test is performed to assess how the thyroid hormones and TSH function together in the body. T4 (thyroxine) and T3 (triiodothyronine) examinations may also be organized. Another useful measure is the thyroid-stimulating immunoglobulin test (TSI), which detects the presence of the TSI antibody, known to be present in cases of Graves' disease, which commonly causes hyperthyroidism. Finally, the blood may be examined for the presence of Antithyroid antibodies. These appear in two forms: anti-TG antibodies or anti-thyroperoxidase antibodies. Either may appear in the event that a patient has Hashimoto's disease, which is a known cause of hypothyroidism