This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Anatomy
[{'content': 'Pleural fluid having low glucose is seen in all except \nSelect and explain. \nA. Tuberculosis, B. Emphysema, C. Rheumatoid ahritis, D. Mesothelioma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref Harrison 19 th ed/pg 1717 Figure 316-1 Glucose < 60 mg/dL Consider: Malignancy Bacterial infections Rheumatoid pleuritis . In tubercular effusion , pleural fluid glucose level is usually normal / mildly reduced.', 'role': 'assistant'}]