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MediumRespiratory MedicinePleural Effusionukmlamrcp part 1pane

A 60-year-old man presents with progressive shortness of breath. Chest X-ray reveals a large right-sided pleural effusion. A diagnostic pleural tap is performed. Biochemistry results show: Pleural fluid protein 35 g/L, Serum protein 65 g/L. According to Light's criteria, how is this effusion classified based on this protein ratio?

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