Chapter 32

A man is given a drug to reduce thyroid gland size and vascularity before surgical thyroidectomy. Which mechanism is responsible for its use in this setting? (A) inhibition of the sodium/iodide symporter (B) inhibition of thyroperoxidase (C) inhibition of TSH secretion (D) inhibition of thyroid hormone release (E) destruction of thyroid tissue

A woman with weight loss, nervousness, heat intolerance, and exophthalmos is prescribed methimazole to induce a remission in her disease. Which adverse effect is most often associated with this medication? (A) hypotension and bradycardia (B) thromboembolism (C) pruritic rash (D) liver failure (E) agranulocytosis

After total thyroidectomy, a woman is placed on levothyroxine to maintain normal thyroid levels. Which attribute is correctly associated with this drug? (A) partly converted to \(T_3\) in the body (B) administered several times a day (C) the most potent thyroid hormone (D) half-life of 1 day (E) oral bioavailability of \(95 \%\)

After exposure to radioactive fallout containing \({ }^{131} \mathrm{I}\), which agent could be administered to prevent destruction of thyroid tissue? (A) liothyronine (B) methimazole (C) propranolol (D) potassium iodide (E) levothyroxine