Serum Ascites Albumin Gradient (SAAG)
SAAG is the standard for defining presence of portal hypertension (does not differentiate cause) in patients with ascites.
SAAG = (albumin concentration of serum) – (albumin concentration of ascitic fluid).
Explanation of Result :
A high gradient (> 1.1 g/dL) indicates the ascites is due to portal hypertension with 97% accuracy.
About the Calculation :
* Please verify all calculations prior to clinical use.