Pediatrics Ductus dependent blood flow is required for all of these congenital heart diseases except – A Persistent truncus arteriosus B Hypoplastic left heart syndrome C Pulmonary stenosis D TGA with intact ventricular septum 💡 Explanation Ductus dependent blood flow is required for all of these congenital heart diseases except – ✓ Correct Answer: A. Persistent truncus arteriosus