Several tests can be performed on peritoneal fluid to diagnose underlying conditions:
1. Cell Count and Differential: High white cell count may indicate infection or inflammation. 2. Gram Stain and Culture: Identifies bacterial infections. 3. Biochemical Analysis: Measures protein, glucose, and [lactate dehydrogenase](https://) (LDH) levels to differentiate between transudative and exudative fluid. 4. Cytology: Examines cells in the fluid for signs of malignancy. 5. Amylase Levels: Elevated levels may suggest pancreatitis.
