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
In atrial septal defect the aoa is - 
Select and explain. 
A. Small, B. Normal, C. Enlarged, D. Aneurysmal
A: Small
Answer: A: Small 
Explanation: Ans. is 'a' i.e., Small Chest x-ray in ASD o Mild to moderate cardiomegaly o Prominent pulmonary aery segement. o Right atrial and right ventricular enlargement. o Relatively small aoic shadow o Plethoric lung fields.