This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Acyanotic congenital hea diseases, Subject name: Pediatrics
A child with VSD develops the following findings. There is no history of fever. What is the probable cause of these findings? 
Select and explain. 
A. Infective endocarditis, B. Eissenmenger syndrome, C. Cyanotic spell, D. Patent ductus aeriosus
B: Eissenmenger syndrome
Answer: B: Eissenmenger syndrome 
Explanation: --> Clubbing & cyanosis in a child with VSD, with no history of fever, is suggestive of Eisenmenger syndrome. --> EISENMENGER SYNDROME: Any untreated congenital cardiac defect with intracardiac communication that leads to pulmonary hypeension, reversal of flow , cyanosis. --> VSD + FEVER + CLUBBING --> suggestive of INFECTIVE ENDOCARDITIS --> CYANOTIC SPELL/ TET SPELL: Episodic central cyanosis due to total occlusion of right ventricle outflow in a patient with a congenital hea disease, such as Tetralogy of Fallot (TOF). --> PATENT DUCTUS AERIOSUS: Persistence of connection b/w pulmonary aery & aoa even after bih.