The thyroid gland uses TPO along with iodine to generate the thyroid hormones triiodothyronine (T3) and thyroxine (T4). Together, these hormones regulate body temperature, heart rate, and metabolism.
Anti-TPO - Antithyroid peroxidase (anti-TPO ... T4 is the thyroid hormone containing 4 atoms of iodine per molecule. Normal serum level in nonpregnant adult is 5-12 mcg/dL. FT4 - Free thyroxine ...