KROK 1 2019 – Question 37 · KROK (Medicine) · Biological Chemistry
Examination of a patient shows decreased leukocyte and erythrocyte count and low hemoglobin levels in peripheric blood, as well as appearance of large cells (megaloblasts). What vitamin deficiency can cause these clinical presentations?
- A. Niacin
- B. Folic acid
- C. Biotin
- D. Ascorbic acid
- E. Riboflavin
Hint
Large immature marrow cells together with low counts of all blood lines suggest slowed DNA synthesis; ask which vitamin-dependent coenzyme is needed for that.
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