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      Calc Function

    • Calcs that help predict probability of a diseaseDiagnosis
    • Subcategory of 'Diagnosis' designed to be very sensitiveRule Out
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    Patent Pending

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    Anion Gap

    Evaluates states of metabolic acidosis.


    We now have an ABG Analyzer to help with acid-base analysis as well.

    When to Use
    Why Use

    Determining if a patient's acidosis also has an elevated anion gap.

    Unmeasured proteins (e.g. immunoglobulins in patients with monoclonal gammopathies or myeloma) may lead to a paradoxically normal anion gap. 

    Anion gap acidoses have a very different differential diagnosis than non-gap acidoses.



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    Creator Insights
    Dr. Man S. Oh

    About the Creator

    Man S. Oh, MD, is a professor of medicine and the director of fluid and electrolytes in the Department of Nephrology at SUNY Downstate Medical Center.

    To view Dr. Man S. Oh's publications, visit PubMed

    Are you Dr. Man S. Oh? 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. Man S. Oh
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