This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other hea diseases in children, Subject name: Pediatrics
Ductus dependent blood flow is required for all of the following congenital hea disease except:- 
Select and explain. 
A. Hypoplastic left hea syndrome, B. Pulmonary stenosis, C. TGA with intact ventricular septum, D. Persistent truncus aeriosus
D: Persistent truncus aeriosus
Answer: D: Persistent truncus aeriosus 
Explanation: DUCTUS DEPENDENT CONDITIONS : --> Conditions which depend on a patent ductus aeriosus (PDA) to supply pulmonary or systemic blood flow. Systemic circulation Pulmonary circulation - Critical Aoic Stenosis - Severe coarctation of aoa - Interrupted aoic arch - Hypoplastic Left Hea Syndrome -Severe Pulmonary Stenosis - Severe TOF - Pulmonary atresia - Tricuspid atresia - Ebstein anomaly DUCTUS INDEPENDENT CONDITIONS: - Truncus aeriosus - TAPVC - ALCAPA