Surgery Ratio of Pleural Fluid protein to serum protein is _______ in transudative pleural effusion A < 0.3 B < 0.4 C < 0.5 D < 0.6 💡 Explanation Ratio of Pleural Fluid protein to serum protein is _______ in transudative pleural effusion ✓ Correct Answer: C. < 0.5