This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'What is the absolute neutrophil count in a patient with severe neutrophill depletion? \nSelect and explain. \nA. 100, B. 250, C. 500, D. 1000', 'role': 'user'}, {'content': "Answer: C \nExplanation: Absolute neutrophil count in severe neutropenia is less than 500 cells/ microL. Also know: In mild neutropenia, absolute neutrophil count is between 1000 to 1500 cells/microL. In moderate neutropenia, absolute neutrophil count is between 500 to 1000 cells/microL. In chronic neutropenia, absolute neutrophil count is less than 500 for more than 6 months. Neutropenic children are at greatest danger of developing infection with Staphylococci or with gram negative enteric organism. Ref: Oski's Pediatrics: Principles And Practice By Julia A. McMillan, 4th edn, page 1713", 'role': 'assistant'}]