Serum-ascites albumin gradient (SAAG)
The serum-ascites albumin gradient separates ascites due to portal hypertension from other causes, with about 97% accuracy. Take the serum albumin on the same day as the paracentesis.
Enter the values above.
References
Runyon BA, Montano AA, Akriviadis EA, et al. The serum-ascites albumin gradient is superior to the exudate-transudate concept in the differential diagnosis of ascites. Ann Intern Med. 1992;117(3):215-220.
Biggins SW, Angeli P, Garcia-Tsao G, et al. Diagnosis, evaluation, and management of ascites, spontaneous bacterial peritonitis and hepatorenal syndrome: 2021 Practice Guidance by AASLD. Hepatology. 2021;74(2):1014-1048.