This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Pulsus bisiferiens is seen in all except \nSelect and explain. \nA. Aoic regurgitation + aoic stenosis, B. Aoic regurgitation, C. Hyperophic cardiomyopathy, D. Tetrology of hea', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ref Harrison 19 th ed pg 1526 Pulsus bisferiens, also known as biphasic pulse, is an aoic waveform with two peaks per cardiac cycle, a small one followed by a strong and broad one. It is a sign of problems with the aoic valve, including aoic stenosis and aoic regurgitation, as well as hyperophic cardiomyopathy causing subaoic stenosis.', 'role': 'assistant'}]