This is an unprecedented time. It is the dedication of healthcare workers that will lead us through this crisis. Thank you for everything you do.

      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

    Disease

    Select...

    Specialty

    Select...

    Chief Complaint

    Select...

    Organ System

    Select...

    Patent Pending

    Free Water Deficit in Hypernatremia

    Calculates free water deficit by estimated total body water.
    Pearls/Pitfalls
    This tool provides an estimate of free water deficit based on a patient's body weight; this can be incorrect in patients with signfiicant weight gain or loss (especially from fluid sources).
    Female
    Male
    Child
    Adult
    Elderly
    lbs
    mEq/L
    mEq/L

    Result:

    Please fill out required fields.

    Next Steps
    Evidence
    Creator Insights
    Dr. Nicolaos E. Madias

    About the Creator

    Nicolaos E. Madias, MD, is the chair of the department of medicine at the St. Elizabeth's Medical Center in Boston, Massachusetts. He is also a professor of medicine, specializing in Nephrology, at the Tufts University School of Medicine. Dr. Madias has co-authored over 100 articles published in peer reviewed journals.

    To view Dr. Nicolaos E. Madias's publications, visit PubMed

    Are you Dr. Nicolaos E. Madias? 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. Nicolaos E. Madias
    Are you Dr. Nicolaos E. Madias?