Thyroid storm is prevented by administering what medications before a thyroidectomy?

Thyroid storm is prevented by administering what medications before a thyroidectomy?

• A. Thyroid replacement hormones
• B. Thyroid-stimulating drugs
• C. Can't be prevented
• D. Antithyroid drugs

Answer: (D)

The key idea is preparing the patient so that thyroid hormone levels are brought under control before surgery, minimizing the risk of a thyroid storm during thyroidectomy. Antithyroid drugs, such as methimazole or propylthiouracil, block the synthesis of thyroid hormones. By reducing production and helping achieve a euthyroid state, these meds lower circulating hormone levels and decrease the gland’s vascularity, which reduces the chance of a dangerous surge in thyroid hormone when the gland is manipulated during surgery. They’re started well in advance to allow time for levels to normalize. In contrast, replacing hormones or stimulating the thyroid would worsen thyrotoxic risk, and saying it can’t be prevented isn’t accurate. Occasionally iodine after antithyroid therapy and beta-blockers are used to further stabilize the patient, but the core preventive measure is antithyroid drugs.

The key idea is preparing the patient so that thyroid hormone levels are brought under control before surgery, minimizing the risk of a thyroid storm during thyroidectomy. Antithyroid drugs, such as methimazole or propylthiouracil, block the synthesis of thyroid hormones. By reducing production and helping achieve a euthyroid state, these meds lower circulating hormone levels and decrease the gland’s vascularity, which reduces the chance of a dangerous surge in thyroid hormone when the gland is manipulated during surgery. They’re started well in advance to allow time for levels to normalize. In contrast, replacing hormones or stimulating the thyroid would worsen thyrotoxic risk, and saying it can’t be prevented isn’t accurate. Occasionally iodine after antithyroid therapy and beta-blockers are used to further stabilize the patient, but the core preventive measure is antithyroid drugs.