SERUM ASCITES ALBUMIN GRADIENT (SAAG)

Overview

The Serum-Ascitic Albumin Gradient (SAAG) test measures the albumin difference between blood serum and ascitic fluid to help identify the cause of fluid buildup in the abdomen (ascites). A high SAAG suggests portal hypertension, often linked to liver cirrhosis, while a low SAAG points to non-liver-related causes, such as infections or malignancies.