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': 'The following are signs of left heart failure except: \nSelect and explain. \nA. S3 gallop, B. Pedal edema, C. Bilateral lung base crepitations, D. Orthopnea', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Signs of left heart failure:-\xa0\xa0\ni.\xa0Dyspnea on exertion\xa0\nii. Orthopnea\xa0\niii.\xa0Paroxysmal Nocturnal Dyspnea\xa0\niv. Bilateral lung base crepitations (suggestive of pulmonary edema)\xa0\nv.\xa0S3 gallop\xa0\nvi. Pulsus paradoxus\xa0 \xa0\nvii.\xa0N-terminal Brain Natriuretic peptide levels are increased\xa0\nSigns of Right ventricular failure are:-\ni. Elevated JVP\xa0\nii. Pedal edema\xa0\niii. Tender hepatomegaly\xa0\niv. Ascites', 'role': 'assistant'}]