This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pediatrics
[{'content': 'Large PDA (Patent ductus aeriosus) leads to \nSelect and explain. \nA. Endocardial valvulits, B. Eisenmenger syndrome, C. CHF, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: In PDA CHF may devolop within 6 -10 week of life. Large PDA will lead to pulmonary hypeension and reversal of shunt lead to eisenmenger syndrome and differential cyanosis Ref : Ghai essential of pediatrics, eighth edition, P.no:418 Harrison principals of internal medicine,19th edition,p.no:1523 Davidson&;s principles and practice of medicine,21st edition,p.no:629', 'role': 'assistant'}]