ATI RN
Vitamin Drugs Questions
Question 1 of 5
The drug of choice for the management of osteoporosis caused by high-dose use of glucocorticoids is
Correct Answer: A
Rationale: Alendronate, a bisphosphonate, is the drug of choice for glucocorticoid-induced osteoporosis by inhibiting osteoclast activity and bone resorption.
Question 2 of 5
Conversion of methionine to cysteine depends on vitamin
Correct Answer: C
Rationale: Vitamin B6 (pyridoxine) is a cofactor in the transsulfuration pathway converting methionine to cysteine.
Question 3 of 5
Avidin, a protein found in egg white is an antagonist of
Correct Answer: A
Rationale: Avidin binds biotin tightly, preventing its absorption and acting as an antagonist.
Question 4 of 5
All of the following are important functions of magnesium $(\mathrm{Mg})$ except
Correct Answer: B
Rationale: Magnesium is critical for nerve conduction, muscle contractility, and metabolism, but not directly for phospholipid synthesis.
Question 5 of 5
Factors likely to cause an increase in the blood urea nitrogen (BUN) level include
Correct Answer: C
Rationale: Chronic kidney disease impairs urea excretion, increasing BUN; liver disease typically decreases BUN, and diazepam does not affect it.