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    Chief Complaint


    Organ System


    Patent Pending

    MDRD GFR Equation

    Estimates glomerular filtration rate based on creatinine and patient characteristics.


    Only for chronic kidney disease (CKD); not accurate for acute renal failure. Also, note that a later study indicates the MDRD may underestimate the actual GFR in healthy patients by up to 29%. This calculator uses the 4-variable equation from Levey 2006, as it has been recalibrated for differences in the lab testing of creatinine.

    The Modification of Diet in Renal Disease Study (MDRD) equation cannot be used for acute renal failure. It is only useful in estimating glomerular filtration rate (GFR) in stable chronic kidney disease.


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    Creator Insights
    Dr. Andrew S. Levey

    About the Creator

    Andrew S. Levey, MD, is the chief of the nephrology division at Tufts Medical Center and the Dr. Gerald J. and Dorothy R. Friedman Professor at Tufts University School of Medicine. His clinical interests include chronic kidney disease (CKD), diabetic kidney disease, and systemic lupus erythematosus. Dr. Levey’s research focuses on laboratory measures to estimate kidney function, new therapies, and the development of clinical practice guidelines for CKD.

    To view Dr. Andrew S. Levey's publications, visit PubMed

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    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. Andrew S. Levey
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