What treatment might be considered for an overactive thyroid gland?

The selected treatment of radioactive iodine therapy is considered appropriate for an overactive thyroid gland, also known as hyperthyroidism. This therapy involves administering a radioactive form of iodine, which specifically targets thyroid tissue. The concentrated uptake of iodine by the overactive thyroid cells leads to their destruction, thus reducing the production of thyroid hormones. This method effectively lowers hormone levels and alleviates symptoms associated with hyperthyroidism.

Radioactive iodine therapy is favored for its effectiveness, non-invasiveness, and relatively low risk of complications. It's particularly beneficial for conditions like Graves' disease, where the thyroid is excessively producing hormones due to autoimmune stimulation.

In contrast, insulin therapy, which is aimed at managing blood glucose levels in diabetes, does not address thyroid function. High doses of calcium are not relevant, as they may relate more to bone health or parathyroid issues rather than thyroid problems. Increased fluid intake, while beneficial for overall health and hydration, does not specifically treat hyperthyroidism. Therefore, radioactive iodine therapy emerges as the optimal choice for managing an overactive thyroid gland.