Case Study Exhibits What is the expected therapeutic effect of radioactive lodine therapy in hyperthyroidism?

A. Increase TSH levels: Radioactive iodine therapy works by destroying overactive thyroid tissue, which will eventually lead to a decrease in T3 and T4 levels. As a result, TSH levels may rise in response to reduced thyroid function. However, increasing TSH levels is not the direct therapeutic effect of the iodine itself. B. Prevent thyroid cancer: Radioactive iodine therapy is used to treat hyperthyroidism, not to prevent thyroid cancer. It is not a preventive treatment for cancer, but rather a way to manage an overactive thyroid. C. Destroy overactive thyroid tissue: Radioactive iodine (I-131) is used to destroy overactive thyroid tissue in Graves' disease, which helps to reduce the production of thyroid hormones. Over time, the thyroid tissue absorbs the iodine, leading to reduced thyroid function. D. Stimulate thyroid hormone production: Radioactive iodine works to destroy thyroid tissue and decrease thyroid hormone production, not to stimulate it. The goal is to reduce the excessive production of T3 and T4.