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HardRespiratory MedicinePleural Effusionmrcp part 1ukmla

A 60-year-old man has a diagnostic pleural fluid aspiration for a unilateral pleural effusion. Results are: Pleural fluid protein 40 g/L, Serum protein 60 g/L; Pleural fluid LDH 300 IU/L, Serum LDH 200 IU/L. How should this effusion be classified according to Light's criteria?

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