Radioactive iodine is used to treat which condition?

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Multiple Choice

Radioactive iodine is used to treat which condition?

Explanation:
Radioactive iodine treats hyperthyroidism because the thyroid gland uniquely concentrates iodine from the blood. When given orally as radioactive iodine, the thyroid takes it up and the emitted beta radiation destroys overactive thyroid tissue. This reduces thyroid hormone production, relieving symptoms of Graves disease and other hyperthyroid states. Over time, many patients become hypothyroid and may need lifelong thyroid hormone replacement, but the treatment directly targets the thyroid where the excess activity is. Destroying adrenal glands, treating type 2 diabetes, or treating iron-deficiency anemia do not involve this thyroid-focused, iodine-based approach.

Radioactive iodine treats hyperthyroidism because the thyroid gland uniquely concentrates iodine from the blood. When given orally as radioactive iodine, the thyroid takes it up and the emitted beta radiation destroys overactive thyroid tissue. This reduces thyroid hormone production, relieving symptoms of Graves disease and other hyperthyroid states. Over time, many patients become hypothyroid and may need lifelong thyroid hormone replacement, but the treatment directly targets the thyroid where the excess activity is. Destroying adrenal glands, treating type 2 diabetes, or treating iron-deficiency anemia do not involve this thyroid-focused, iodine-based approach.

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