This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Medicine
[{'content': 'All of the following features are seen in left ventricular failure except? \nSelect and explain. \nA. Lung oligemia, B. Kerley B lines, C. Crepitations, D. Pedal Oedema', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Clinical feature of LVF: | SBP leads to oliguria S3 present: Ventricular gallop rhythm B/L fine crepitations B/L reduced air entry Kerley B lines - Perpendicular to pleural surface. Due to thickened interlobular septa. - Also seen in lymphangitis carcinomatosis Kerley A lines: Present in the periphery of hila - Due to distension of anastomotic channels between central and peripheral lymphatics. Kerley C lines: Reticular opacities at lung base. 6. B/L pitting pedal edema Right-sided hea failure is shown by enlarged systemic veins and right-sided chambers as well as pulmonary oligemia.', 'role': 'assistant'}]