TG and hyperthyroidism: RAI treatment is preferred in situations in which greater value is placed on the definitive control of hyperthyroidism, the avoidance of surgery, and the potential adverse effects of antithyroid drugs, and a lower value is placed on the need for lifelong thyroid hormone replacement and the rapid resolution of hyperthyroidism.1 The European Thyroid Association guidelines also recommend RAI therapy to be considered for patients who prefer this approach.4