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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
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    Patent Pending

    PSI/PORT Score: Pneumonia Severity Index for CAP

    Estimates mortality for adult patients with community-acquired pneumonia.

    IMPORTANT

    We launched a COVID-19 Resource Center, including a critical review of recommended calcs.

    Tips for COVID-19: Use after diagnosis to determine dispo. Inputs line up better with known COVID-19 risk factors; adjust for elderly.

    When to Use
    Pearls/Pitfalls
    Why Use

    The PSI/PORT Score can be used in the clinic or emergency department setting to risk stratify a patient’s community acquired pneumonia.

    • Since points are assigned by absolute age in the PSI, it may underestimate severe pneumonia in an otherwise young healthy patient.
    • Consider sepsis in patients with pneumonia; the PSI was developed prior to aggressive sepsis screening with lactate testing.
    • Though a patient may be categorized as appropriate for outpatient treatment, assess potential barriers to treatment such as vomiting, alcohol/drug use, psychosocial conditions, or cognitive impairments.
    • Any patient over 50 years of age is automatically classified as risk class 2, even if they otherwise are completely healthy and have no other risk criteria.

    The PSI/PORT Score is a useful tool which provides an excellent risk stratification of community acquired pneumonia. For most patients however, the CURB-65 is easier to use and requires fewer inputs.

    years
    Female
    -10
    Male
    0
    No
    0
    Yes
    +10
    No
    0
    Yes
    +30
    No
    0
    Yes
    +20
    No
    0
    Yes
    +10
    No
    0
    Yes
    +10
    No
    0
    Yes
    +10
    No
    0
    Yes
    +20
    No
    0
    Yes
    +20
    No
    0
    Yes
    +20
    No
    0
    Yes
    +15
    No
    0
    Yes
    +10
    No
    0
    Yes
    +30
    No
    0
    Yes
    +20
    No
    0
    Yes
    +20
    No
    0
    Yes
    +10
    No
    0
    Yes
    +10
    No
    0
    Yes
    +10
    No
    0
    Yes
    +10
    Confirmed positive
    Suspected
    Unlikely
    Confirmed negative

    Result:

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    Next Steps
    Evidence
    Creator Insights
    Dr. Michael J. Fine

    About the Creator

    Michael J. Fine, MD, MSc, is a professor in the Division of General Internal Medicine at the University of Pittsburgh. He is also the director of the Center for Health Equity Research and Promotion (CHERP) at the VA Pittsburgh Healthcare System. Dr. Fine’s research focuses on improving healthcare equity for patients with common medical conditions, such as community-acquired pneumonia, venous thromboembolism, and diabetes, especially in vulnerable patient populations.

    To view Dr. Michael J. Fine's publications, visit PubMed

    Are you Dr. Michael J. Fine? 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.
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