This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Valvular hea diseases, Subject name: Medicine
[{'content': 'All findings are seen in a patient with isolated aoic stenosis except? \nSelect and explain. \nA. Left ventricular impulse is displaced laterally, B. Pulsus bisferiens is hallmark finding, C. Systemic BP is normal in early stages of disease, D. Carotid thrill', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Aoic stenosis(AS) Results in LVH -Double apical impulse and shift of apex beat laterally. Characteristic pulse -Pulsus parvus et tardus. Early stages -BP -Normal. Later stages -Low SBP , | Pulse pressure. Murmur - Ejection systolic murmur with carotid thrill. Pulsus bisferiens is seen in HOCM & severe AR.', 'role': 'assistant'}]