Calc Function

    • Calcs that help predict probability of a diseaseDiagnosis
    • Subcategory of 'Diagnosis' designed to be very sensitiveRule Out
    • Disease is diagnosed: prognosticate to guide treatmentPrognosis
    • Numerical inputs and outputsFormula
    • Med treatment and moreTreatment
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    Chief Complaint


    Organ System


    Patent Pending

    Estimated Average Glucose (eAG) From HbA1C

    Estimates an average glucose level from Hemoglobin A1C value.
    When to Use
    The estimated average glucose can be useful in patients who do not check their glucose levels frequently or do not record them.
    % gly Hgb


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    Creator Insights
    Dr. David Nathan

    About the Creator

    David M. Nathan, MD, is director of the General Clinical Research Center and of the Diabetes Center at Massachusetts General Hospital. He is also a professor of medicine at Harvard Medical School. He is an active researcher with over 200 published articles and focuses on the development of innovative therapies to treat type 1 and type 2 diabetes and to prevent its long-term complications.

    To view Dr. David Nathan's publications, visit PubMed

    Are you Dr. David Nathan? 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. David Nathan
    Are you Dr. David Nathan?