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      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
    • Suggested protocolsAlgorithm

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    Patent Pending

    Fractional Excretion of Urea (FEUrea)

    Determines the cause of renal failure. Similar to the FENa, but can be used on patients on diuretics.
    Pearls/Pitfalls

    While lesser known than FENa, the FEUrea can be used in patients on diuretics, since urea excretion is not significantly affected by diuretics.

    mg/dL
    mg/dL
    mg/dL
    mg/dL

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    Evidence
    Creator Insights
    Dr. Andre A. Kaplan

    About the Creator

    Andre A. Kaplan, MD, FACP, FASN, is a nephrologist at UConn Health. He is also a professor of medicine at University of Connecticut School of Medicine. Dr. Kaplan’s primary research is focused on kidney disease and dialysis.

    To view Dr. Andre A. Kaplan's publications, visit PubMed

    Dr. Orly F. Kohn

    About the Creator

    Orly F. Kohn, MD, is an associate professor of medicine at the University of Chicago Medicine. She is also the medical director of the Home Dialysis Unit at the University of Chicago. Dr. Kohn’s primary research is focused on diabetic nephropathy, home dialysis, and electrolyte disorders.

    To view Dr. Orly F. Kohn's publications, visit PubMed

    Are you Dr. Orly F. Kohn? 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. Andre A. Kaplan
    Dr. Orly F. Kohn
    Are you Dr. Orly F. Kohn?