Pleural effusion in rheumatoid ahritis is typically associated with the following features except
Ans. is 'a' i.e., Glucose > 60 mg/dl Causes of low glucose pleural fluid Malignancy Rheumatoid ahritis Empyema Hemothorax Paragonimiasis Churg strauss syndrome Lupus pleuritis (occasionally)
Glucose > 60 mg/dl
Protein > 3 gm/di
Pleural fluid protien to serum protein ratio of >0 .5
Pleural fluid LDH to serum LDH ratio of >0.6