Medicine All the following in the Light’s criteria are suggestive of exudative pleural effusion except – A Pleural fluid protein : serum protein ratio > 0.5 B Pleural fluid ADA < 16 C Pleural fluid LDH : serum LDH ratio >0.6 D Pleural fluid L DH > two thirds of the upper limitof serum LDH 💡 Explanation All the following in the Light's criteria are suggestive of exudative pleural effusion except - ✓ Correct Answer: B. Pleural fluid ADA < 16