*4.1.6 Serum ascites albumin gradient (SAAG)*

Serum ascites albumin gradient is presently the best tool in diagnosis of the cause of ascites especially that from portal hypertension [38]. A SAAG value of <1.1 g/dl or 11 g/l indicates causes of non-portal origin such as malignancy, etc. [5]. Gradients >1.1 g/dl or 11 g/l indicate ascites of portal hypertension.
