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    Chief Complaint


    Organ System


    Patent Pending

    Serum Ascites Albumin Gradient (SAAG)

    Defines presence of portal hypertension in patients with ascites.
    When to Use
    Why Use

    Patients with known liver disease and ascites in whom portal hypertension status is unknown.

    • The serum ascites albumin gradient (SAAG) can determine which patients with liver disease have portal hypertension.
    • A cutoff level of 1.1 has been validated to determine who has portal hypertension.

    Obtaining ascites fluid is relatively simple and safe in experienced operators. The constituents of ascites fluid offer a less-invasive method for gauging risk and portal hypertension status.



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    Creator Insights
    Dr. John Carl Hoefs

    About the Creator

    John Carl Hoefs, MD, is a Professor of Medicine at University of California Irvine. He studied medicine at George Washington University in Washington DC. He currently practices and researches in the hepatology field, specifically regarding Hepatitis B, Hepatitis C, Ascites, Chronic liver disease, Liver-spleen scan and Hepatic function.

    To view Dr. John Carl Hoefs's publications, visit PubMed

    Are you Dr. John Carl Hoefs? Send us a message to review your photo and bio, and find out how to submit Creator Insights!
    MDCalc loves calculator creators – researchers who, through intelligent and often complex methods, discover tools that describe scientific facts that can then be applied in practice. These are real scientific discoveries about the nature of the human body, which can be invaluable to physicians taking care of patients.
    About the Creator
    Dr. John Carl Hoefs
    Are you Dr. John Carl Hoefs?