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
A patient of moderate VSD in chronic CCF develops clubbing with no cyanosis. Diagnosis 
Select and explain. 
A. Shunt reversal, B. Long standing pulmonary edema, C. SABE, D. Pulmonary aery hypeension
C: SABE
Answer: C: SABE 
Explanation: Mild to moderate VSD there are minimal symptoms . VSD is the commonest congenital lesion complicated by infective endocarditis. Ref :pg 417 Ghai pediatrics. Eighth edition