This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Medicine
[{'content': 'Patient with MCV = 60, Hb - 5 gm % MCHC-=20 &PCV =32 %, causes of anemia in him can be - \nSelect and explain. \nA. Phenytoin, B. Blind loop syndrome, C. Hook worm infection, D. CRF', 'role': 'user'}, {'content': 'Answer: C \nExplanation: <p>Here Hb is reduced ,MCV belw 80fl, MCHC is diminished (below 20g/dL). All this features correlates with iron deficiency anemia.From the above options the cause of iron deficiency is hook worm infestation .</p><p>Reference :Harsh mohan textbook of pathology sixth edition pg no 299.</p>', 'role': 'assistant'}]