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: Pediatrics
[{'content': 'True about Rheumatic carditis – \nSelect and explain. \nA. Only endocarditis, B. Only myocarditis, C. Only Pericarditis, D. Pancarditis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Rheumatic\xa0carditis\n\nSeen in 40-60% of patients\nUsually seen within 3 weeks.\nIt is a pancarditis involving all the three layers ---> Myocardium, endocardium & Pericardium.\nRheumatic carditis is the only manifestation of acute RF that has the potential to cause long term disability and death.\nThe diagnosis of rheumatic carditis requires presence of one of the following.\n\no Organic cardiac murmurs not present previously.\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0 o Cardiomegaly\no Congestive heart failure\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0 o Pericarditis', 'role': 'assistant'}]