Wide pulse pressure as an indicator of large left to right shunt is seen in?
A) Atrial septal defect
B) Ventricular septal defect
C) Patent ductus arteriosus
D) Partial anomalous pulmonary venous drainage
Correct answer: C) Patent ductus arteriosus
Wide pulse pressure is noted in PDA because of the aortic run off – drainage of large volume of blood from the descending aorta at high pressure to the pulmonary artery at a low pressure.