Elevated ft3 (free triiodothyronine) and ft4 (free thyroxine) and lowered tsh (thyroid-stimulating hormone) are often seen in clinical conditions such as hyperthyroidism, and need to be treated with antithyroid medication according to their cause. Hyperthyroidism, resulting in high levels of thyroid hormones in the blood, causing ft3, ft4 elevation, can be given antithyroxine drugs, (methimazole tablets, propylthiouracil tablets, etc.) medication, but also the choice of iodine 131 treatment or surgical treatment. It is recommended to consult a doctor in time and use medication under the guidance of a physician, do not take medication on your own.