ATI RN
Vitamin Drugs Questions
Question 1 of 5
Which of the following is true about iron therapy?
Correct Answer: C
Rationale: Prophylactic iron is recommended during pregnancy due to increased demand; IM iron isn’t faster, and breastfed infants may need iron later.
Question 2 of 5
Megaloblastic anaemia occurs in
Correct Answer: C
Rationale: Megaloblastic anemia results from deficiency of either vitamin B12 or folic acid, impairing DNA synthesis.
Question 3 of 5
The daily dietary requirement of Vitamin $B_{12}$ by an adult is
Correct Answer: A
Rationale: The adult daily requirement for vitamin B12 is 1-3 μg, sufficient for metabolic needs.
Question 4 of 5
Which of the following factor(s) is/are required for the absorption of Vitamin $B_{12}$ ingested in physiological amounts?
Correct Answer: D
Rationale: Gastric acid releases B12 from food, and intrinsic factor binds it for ileal absorption; both are required.
Question 5 of 5
Hydroxocobalamine differs from cyanocobalamine in that
Correct Answer: D
Rationale: Hydroxocobalamin is better retained and effective in tobacco amblyopia due to cyanide binding.