<prompt> All are true about Exudates EXCEPTMultiple poymorphs cellsProtein 1 gmSpecific gravity 1.015Turbid appearance fluid  <response>: B. i.e. Protein 1 gm 1658 - H16thDifference between Transudate and Exudate pleural effusion TRANSUDATEEXUDATES1. ProcessPassiveActive2. Serous structuresOthersOnly locals3. AppearanceClearClear turbid4. Specific gravity1.0151.0155. Proteins3gm3gm6. CellsFew mesothelial cellsPolymorphs or lymphocytes7. Clot formationNilPresentA pleural exudates is an effusion that has one or more of the following laboratory featuresi Ratio of pleural fluid protein to serum protein 0.5 50ii Ratio of pleural fluid LDH to serum LDH 0.6 60iii Pleural fluid LDH greater than two - thirds the upper limit of normal serum LDH Causes of Transudative Pleural Effusions1. CHF5. Peritoneal dialysis2. Cirrhosis6. SVC3. Pulmonary embolization7. Myxedema4. Nephrotic syndrome8. Urinothrax Causes of Haemorrhagic Pleural Effusions1. Trauma5. Acute haemorrhagic pancreatitis2. Tumour6. Bleeding disorder3. Tuberculosis7. Coxsackie- B virus infections4. Pulmonary infaction Best view to demonstrate a small pleural effusion is - Lateral decubitus 