Deck 60: Medicines and the Thyroid

Question 1

Which of the following is true about the action of iodide solutions for hyperthyroid states?

A) High doses of iodide cause an immediate reduction in the release of thyroid hormone.
B) Iodide reduces the blood supply to the thyroid gland and makes it firmer.
C) Iodide has a long half-life and greatly reduces the release of thyroid hormone for up to one month.
D) Both A and B.

Answer 1

Both A and B.

Question 2

What purpose do ?-blockers serve in treating thyroid disease?

A) They directly lower thyroid levels.
B) They are only used for well-controlled patients.
C) They are used to alleviate symptoms caused by adrenergic stimulation.
D) They have no clinical indication in treating thyroid disease.

Answer 2

They are used to alleviate symptoms caused by adrenergic stimulation.

Question 3

Which one of the following physiological responses is not associated with thyroid hormones?

A) The facilitation of normal musculoskeletal growth
B) Glucose storage in the liver
C) The normal development of the nervous system
D) Normal lactation

Answer 3

Glucose storage in the liver

Question 4

The clinical effects of thionamides for hyperthyroid states do not become apparent until stores of thyroid hormones become depleted,which takes about ________ days after the start of therapy.

A) 2 to 3
B) 5 to 7
C) 7 to 14
D) 21 to 28

Question 5

Generally,L-thyroxine is preferable to liothyronine as therapy in hypothyroid states because:

A) it has a longer duration of action.
B) it is less cardiotoxic.
C) levels are easier to monitor.
D) all of the above.

Question 6

Radioactive iodide may be used to treat hyperthyroidism because it:

A) inhibits conversion of L-thyroxine to L-triiodothyronine.
B) reduces synthesis of thyroid hormones.
C) destroys functional thyroid tissue.
D) depletes thyroid hormone stores.