ATI RN
Pharmacology CNS Drugs Classification Questions
Question 1 of 4
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 2 of 4
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.
Question 3 of 4
A 28-year-old woman with infertility and anovulation is treated with clomiphene citrate. The mechanism of action of clomiphene is:
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 4 of 4
Which of the following is characteristic of vitamin D-resistant rickets?
Correct Answer: A
Rationale: Vitamin D-resistant rickets (choice A), often X-linked hypophosphatemic rickets, features elevated 1,25-dihydroxyvitamin D due to renal phosphate wasting, despite resistance. It's not male-confined (choice B, though X-linked), doesn't cause glycosuria (choice C), and PTH may rise (choice D false). Elevated active vitamin D is diagnostic.