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