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: Pathology
[{'content': 'Thrombocytopenia is caused by:a) Heparinb) Acyclovirc) DICd) Henoch-schonlein purpura (HSP)e) Hemolytic uremic syndrome (HUS) \nSelect and explain. \nA. acd, B. ace, C. cde, D. ade', 'role': 'user'}, {'content': 'Answer: B \nExplanation: DIC and HUS cause megakaryocytic thrombocytopenia\nDIC and microangiopathic hemolytic anemia cause thrombocytopenia.\nKasabach-Merritt syndrome (KMS) is defined as profound thrombocytopenia related to platelet tapping within a vascular tumor.\nSpleenomegaly (hyperspleenism) may cause thrombocytopenia.\nShaken baby syndrome is not a cause of thrombocytopenia\xa0\n\t\xa0\nImportant drugs causing thrombocytopenia\nQuinine\xa0\xa0\xa0\xa0\xa0\xa0\xa0 o Vancomycin o Sulfa compounds\nQuinidine\xa0\xa0\xa0 o Heparin\xa0\xa0\xa0\xa0\xa0\xa0\xa0 o Gold salts', 'role': 'assistant'}]