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: Medicine
[{'content': 'All are true regarding paroxysmal nocturnal haemoglobinuria, except: \nSelect and explain. \nA. Haemosiderinuria, B. Pancytopenia, C. Increased alkaline phosphatase, D. Cellular marrow', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer is C (Increased alkaline phosphatase) PNH is associated with a decreased leukocyte alkaline phosphate scape. Remember the following fact to answer several questions in our kind of examinations by the principle of exclusion: Conditions with decreased LAP scores P.N.H. C.M.L. Conditions with increased LAP scores Polycythemia (-) Leukemoid reaction c.) Infection', 'role': 'assistant'}]