ATI RN
Pharmacology CNS Drugs Classification Questions
Question 1 of 5
The following drugs are adrenocorticoid antagonists EXCEPT:
Correct Answer: C
Rationale: Metyrapone (choice A), Mifepristone (choice B), and Ketoconazole (choice D) antagonize corticosteroids by inhibiting synthesis or receptor binding. Raloxifene (choice C), a SERM, affects estrogen receptors for osteoporosis/breast cancer, not adrenocorticoids. This exception distinguishes endocrine drug targets.
Question 2 of 5
Human insulin is derived from:
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 5
α-Glucosidase, an enzyme that is inhibited by acarbose, is responsible for:
Correct Answer: C
Rationale: α-glucosidase (choice C), inhibited by acarbose, digests carbohydrates in the gut, and its blockade delays glucose absorption, aiding diabetes. DNA untwisting (choice A), cephalosporin resistance (choice B), and methotrexate toxicity (choice D) involve unrelated mechanisms. This targets glycemic control.
Question 4 of 5
A 44-year-old woman is diagnosed with hypothyroidism and prescribed levothyroxine. Concerning levothyroxine sodium:
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
A patient with type II diabetes was well controlled by sulphonylurea drugs, he then developed hyperglycemia. What is the drug most probably interacting with the oral sulphonylurea?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.