<prompt> Pleural effusion in rheumatoid ahritis is typically associated with all of the following features except?Glucose 620 mgdlProtein 3 gmdlPleural fluid protein to serum protein ratio of 0.5Pleural fluid LDH to serum LDH ratio of 0.6  <response>: Since Rheumatoid ahritis is an inflammatory disease, the rheumatoid effusion is an exudate and is known to have glucose of less than 60mgdL. Malignancy and bacterial infections empyema can also present with low pleural fluid sugar. 