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': 'The following is false about Atrial septal defect ? \nSelect and explain. \nA. Ostium secundum most common, B. Right to Left Shunt, C. May be associated with TAPVC, D. CCF is very rare', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' i.e., Right to left shunt o In ASD there is left to right shunt. Clinical manifestations of ASD o Patients with ASD are generally asymptomatic. o Mild effo intolerance and respiratory tract infection may occur. CHF is rare. Physical examination o Parasternal impulse Systolic thrill at 2"d left interspace. o Accentuation of S, due to loud tricuspid component. o Wide split and fixed S2. o Ejection systolic murmur at the second and third left interspaces. o Delayed diastolic murmur at the lower left sternal border. o ASD with mitral stenosis --> Lutembacher syndrome.', 'role': 'assistant'}]