1. A cloudy pleural fluid has a glucose level of 30 mg/dL (serum glucose level is 100 mg/dL) and a pH of 6.8.

a. What condition do these results indicate?

b. What additional treatment might the patient receive, based on these results?

2. The following results were obtained on a peritoneal fluid: serum albumin, 2.8 g/dL; fluid albumin, 1.2 g/dL.

a. Calculate the SAAG.

b. Is this a transudate or an exudate? Why?

c. What is the most probable cause of the effusion?