What laboratory tests are typically performed after an abdominal paracentesis?

Following an abdominal paracentesis, the analysis of the collected ascitic fluid is crucial for diagnosing various conditions. The typical laboratory tests performed on this fluid include measurements of albumin, total protein, and glucose levels.

Albumin levels in the ascitic fluid are particularly important as they help evaluate the cause of ascites. For example, a comparison between the albumin concentration in serum and the ascitic fluid aids in determining whether the ascites is due to portal hypertension or other causes. Total protein levels can further assist in classifying the ascites as either transudative or exudative, which is essential for guiding treatment decisions.

Testing for glucose in the ascitic fluid can also provide valuable information, especially in cases of infection, as low glucose levels may indicate conditions such as bacterial peritonitis.

In contrast, the other options either involve tests that are not routine for ascitic fluid analysis or are not directly relevant to the diagnostics following a paracentesis. For instance, blood glucose and cholesterol tests are not standard for assessing ascitic fluid. Similarly, creatinine and bilirubin would not be typically assessed in the context of fluid obtained from a paracentesis. Type and crossmatch is associated with blood transfusion