Which of the following medications is typically prescribed for the treatment of hyperthyroidism?
 

Choice A rationale:

Liothyronine (Cytomel) is a type of thyroid hormone used to treat an underactive thyroid (hypothyroidism). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. However, it is not typically used to treat hyperthyroidism.

Choice B rationale:

Liotrix (Thyrolar) is a combination of two thyroid hormones, levothyroxine (T4) and liothyronine (T3), used to treat hypothyroidism, and to prevent and treat goiter. Similar to Liothyronine, it is not typically used to treat hyperthyroidism. Choice C rationale:

Levothyroxine (Synthroid) is used to treat an underactive thyroid (hypothyroidism). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation/medications or removed by surgery. Having enough thyroid hormone helps maintain normal mental and physical activity. In children, having enough thyroid hormone helps them grow and learn normally.

Choice D rationale:

Propylthiouracil (Propacil) is an antithyroid agent used in the treatment of hyperthyroidism. It works by decreasing the amount of thyroid hormone produced by the thyroid gland. This helps to prevent the excessive heat, rapid heart rate, and nervousness caused by too much thyroid hormone in the body.

Choice A rationale:

Polyuria, which is frequent or excessive urination, is not typically a symptom of hypoglycemia. It is more commonly associated with hyperglycemia, or high blood sugar levels.

Choice B rationale:

Sweating is indeed a common symptom of hypoglycemia. When blood sugar levels fall too low, the body may respond by sweating as it releases adrenaline in response to the hypoglycemic state.

Choice C rationale:

Tachycardia, or a fast heartbeat, is another common symptom of hypoglycemia. This is part of the body’s response to low blood sugar levels, as it releases adrenaline to try to raise these levels.

Choice D rationale:

Blurry vision can be a symptom of hypoglycemia. When blood sugar levels fall, it can affect the ability of the eyes to focus, leading to blurry vision.

Choice E rationale:

Polydipsia, or excessive thirst, is not typically a symptom of hypoglycemia. Like polyuria, it is more commonly associated with hyperglycemia.