MCQs on Vitamins, Minerals, and Hematology
Welcome to this comprehensive set of multiple-choice questions (MCQs) focused on vitamins, minerals, and hematology. These questions are designed for medical, pharmacy, and biology students to help for preparing for the HPRCA Assistant Staff Nurse Examination 2026
Each question comes with a “Show Answer” button so you can attempt the question first and then verify your answer. This interactive format helps improve retention and exam preparation efficiency.
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In competitive nursing examinations conducted by HPRCA, questions from Vitamins and Minerals for Staff Nurse and Medical Exams are frequently asked in the form of Multiple Choice Questions (MCQs). These MCQs are designed to test both conceptual clarity and practical understanding.
This MCQ set has been prepared strictly according to the latest HPRCA Assistant Staff Nurse syllabus and exam pattern for 2026. Each question is framed to enhance critical thinking and quick decision-making skills. Practicing these MCQs regularly will help candidates improve accuracy, boost confidence, and perform better in the final examination.
Q1. Thiamine is vitamin
(A) B1
(B) B2
(C) B6
(D) B12
Answer: (A) B1
Q2. The iron stored in intestinal mucosal cells is complexed to
(A) Ferritin
(B) Intrinsic factor
(C) Oprelvekin
(D) Transcobalamin II
(E) Transferrin
Answer: (A) Ferritin
Q3. Which is most likely required by a 5-year-old boy with chronic renal insufficiency?
(A) Erythropoietin
(B) G-CSF
(C) Interleukin-11
(D) Stem cell factor
(E) Thrombopoietin
Answer: (A) Erythropoietin
Q4. In adults, approximately how much thiamine per day is completely degraded?
(A) 0.01 mg
(B) 0.1 mg
(C) 1 mg
(D) 10 mg
Answer: (C) 1 mg
Q5. Drug of choice for osteoporosis caused by high-dose glucocorticoids
(A) Alendronate
(B) Calcitonin
(C) Mestranol
(D) Oxandrolone
(E) Vitamin D
Answer: (A) Alendronate
Q6. Correct drug–clinical application pair
(A) Erythropoietin : Macrocytic anemia
(B) Filgrastim : Thrombocytopenia
(C) Iron dextran : Macrocytic anemia
(D) Ferrous sulfate : Microcytic anemia of pregnancy
(E) Folic acid : Hemochromatosis
Answer: (D) Ferrous sulfate : Microcytic anemia of pregnancy
Q7. Conversion of methionine to cysteine depends on vitamin
(A) B1
(B) B2
(C) B6
(D) B12
Answer: (C) B6
Q8. Avidin in egg white is an antagonist of
(A) Biotin
(B) Pantothenic acid
(C) Choline
(D) Pyridoxal
Answer: (A) Biotin
Q9. All are functions of magnesium except
(A) Nerve conduction
(B) Phospholipid synthesis
(C) Muscle contractility
(D) Carbohydrate, fat & electrolyte metabolism
Answer: (B) Phospholipid synthesis
Q10. Factor causing increased BUN
(A) IM diazepam
(B) Severe liver disease
(C) Chronic kidney disease
(D) None of These
Answer: (C) Chronic kidney disease
Q11. Physiological role of carnitine
(A) Important for oxidation of fatty acids
(B) Decreases aerobic metabolism of carbohydrates
(C) Decreases oxidative phosphorylation
(D) All of the above
Answer: (A) Important for oxidation of fatty acids
Q12. Patients receiving iron therapy should be warned about
(A) Dizziness
(B) Ringing in the ears
(C) Danger of sunlight
(D) Blackening of stool
(E) Paresthesia
Answer: (D) Blackening of stool
Q13. Vitamin B1 is most successfully used in treatment of
(A) Microcytic anemia
(B) Pellagra
(C) Scurvy
(D) Beriberi
(E) Macrocytic anemia
Answer: (D) Beriberi
Q14. Magnesium ion is necessary for
(A) Stimulating enzyme systems
(B) Muscular contraction
(C) Nerve conduction
(D) All of the above
(E) None of the above
Answer: (D) All of the above
Q15. Retinal derivative with greatest biological potency
(A) 9-cis-retinoic acid
(B) All-trans-retinoic acid
(C) All-trans-retinol
(D) 11-cis-retinal
Answer: (B) All-trans-retinoic acid
Q16. Drug used for controlling tetany
(A) IV diazepam
(B) IM vitamin D
(C) IV calcium gluconate
(D) IV calcitonin
Answer: (C) IV calcium gluconate
Q17. Absorption of oral iron is facilitated by
(A) Antacids
(B) Tetracyclines
(C) Phosphates
(D) Ascorbic acid
Answer: (D) Ascorbic acid
Q18. Gut controls iron entry into body by
(A) Regulating apoferritin availability
(B) Apoferritin–ferritin interconversion
(C) Complexing excess iron to ferritin and shedding mucosal cells
(D) Regulating transferrin receptors
Answer: (C) Complexing excess iron to ferritin and shedding mucosal cells
Q19. Percentage of elemental iron in hydrated ferrous sulfate
(A) 5%
(B) 10%
(C) 20%
(D) 33%
Answer: (C) 20%
Q20. Retinoids enhance synthesis of
(A) Fibronectin
(B) Collagenase
(C) Certain keratin species
(D) All of the above
Answer: (A) Fibronectin
Q21. Side effect limiting acceptability of oral iron
(A) Epigastric pain & bowel upset
(B) Black stools
(C) Staining of teeth
(D) Metallic taste
Answer: (A) Epigastric pain & bowel upset
Q22. Iron sorbitol differs from iron dextran because
(A) Cannot be injected IV
(B) Not excreted in urine
(C) Not bound to transferrin
(D) Produces fewer side effects
Answer: (D) Produces fewer side effects
Q23. True about iron therapy
(A) IM iron gives faster Hb response
(B) Iron must be oral except pernicious anemia
(C) Prophylactic iron during pregnancy is required
(D) Breastfed infants do not need iron
Answer: (C) Prophylactic iron during pregnancy is required
Q24. Plasma retinal level diagnostic of hypervitaminosis A
(A) 10 µg/dl
(B) 50 µg/dl
(C) 100 µg/dl
(D) 200 µg/dl
Answer: (C) 100 µg/dl
Q25. Megaloblastic anemia occurs in
(A) Only B12 deficiency
(B) Only folic acid deficiency
(C) Either B12 or folic acid deficiency
(D) Combined deficiency only
Answer: (C) Either B12 or folic acid deficiency
Q26. Daily requirement of Vitamin B12 in adults
(A) 1–3 µg
(B) 50–100 µg
(C) 0.1–0.5 µg
(D) 1–3 µg
Answer: (A) 1–3 µg
Q27. Factors required for absorption of Vitamin B12
(A) Gastric acid
(B) Intrinsic factor
(C) Transcobalamin
(D) Both A and B
Answer: (D) Both A and B
Q28. Hydroxocobalamin differs from cyanocobalamin
(A) More protein bound & retained
(B) Useful in tobacco amblyopia
(C) Benefits hematological only
(D) Both A and B
Answer: (D) Both A and B
Q29. Megaloblastic anemia is caused by deficiency of
(A) Iron
(B) Vitamin B12
(C) Vitamin C
(D) All of the above
Answer: (B) Vitamin B12
Q30. Vitamin B12 is cofactor for
(A) Methylmalonyl-CoA → Succinyl-CoA
(B) 5-CH3-H4 folate → H4 folate
(C) Homocysteine → Methionine
(D) All of the above
Answer: (D) All of the above
Q31. Vitamin K is indicated in bleeding due to
(A) Heparin therapy
(B) Streptokinase therapy
(C) Obstructive jaundice
(D) Peptic ulcer
Answer: (C) Obstructive jaundice
Q32. Menadione (Vitamin K3)
(A) Causes hemolysis in G6PD deficiency
(B) Given in severe liver disease
(C) Used for newborn hemorrhage
(D) Drug of choice for warfarin overdose
Answer: (A) Causes hemolysis in G6PD deficiency
Q33. Vitamin K promotes synthesis of
(A) Factor I
(B) Factor II
(C) Factor VIII
(D) All of the above
Answer: (B) Factor II
Q34. Folinic acid is principally used
(A) Pernicious anemia
(B) B12 deficiency anemia
(C) With methotrexate therapy
(D) Folic acid deficiency
Answer: (C) With methotrexate therapy
Q35. Penicillamine
(A) Effective orally
(B) Causes anaphylaxis in penicillin allergy
(C) Safe in pregnancy
(D) Ineffective in lead poisoning
Answer: (A) Effective orally
Q36. Succimer
(A) Mobilizes essential metals
(B) Less toxic than dimercaprol
(C) Ineffective orally
(D) Contraindicated in children
Answer: (B) Less toxic than dimercaprol
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