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: Medicine
[{'content': 'In carcinoid syndrome, the ap of hea mostly affected is: \nSelect and explain. \nA. Outflow tract of RV, B. Inflow tract of RV, C. Inflow tract of LV, D. Outflow tract LV', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer is B (Inflow tract of RV) The most commonly involved valve in, carcinoid syndrome is tricuspid valve which forms the inflow tract of Right ventricle. Most commonly involved pa of hea : Inflow tract of RV (Tricuspid valve) Second most commonly involved pa of hea : Outflow tract of RV (Pulmonic valve)', 'role': 'assistant'}]