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    Chief Complaint


    Organ System


    Patent Pending

    Nutritional Risk Index (NRI)

    Quantifies malnutrition, validated in many populations.


    Note: although weight and nutritional status are not always correlated (e.g. obese patients may have malnutrition), for the purposes of this calculator, patients with increased weight from baseline (present weight > usual weight) are unlikely to have malnutrition. Always use clinical judgment.

    When to Use

    Do you use the Nutritional Risk Index (NRI) and want to contribute your expertise? Join our contributor team!



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    Creator Insights
    Dr. Gordon P. Buzby

    About the Creator

    Gordon P. Buzby, MD, (d. 2003) was director of the Surgical Metabolic Unit at the Philadelphia Veteran's Administration Medical Center in Pennsylvania. He also served on the faculty of the Perelman School of Medicine at the University of Pennsylvania. Dr. Buzby’s primary research was focused on total parenteral nutrition in surgical patients.

    To view Dr. Gordon P. Buzby's publications, visit PubMed

    Are you Dr. Gordon P. Buzby? 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. Gordon P. Buzby
    Are you Dr. Gordon P. Buzby?