system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 49-year-old man with hypertension comes to the hospital because of 4 days of left-sided chest pain, cough, and fever. The chest pain worsens upon inspiration and coughing. His temperature is 38.5°C (101.3° F), pulse is 110/min, respirations are 29/min. There is dullness to percussion at the left base of the lung. An x-ray of the chest shows blunting of the left costophrenic angle. Evaluation of the pleural fluid is most likely to show which of the following findings?
assistant
Decreased glucose concentration