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    PERC Rule for Pulmonary Embolism

    Rules out PE if no criteria are present and pre-test probability is ≤15%.

    0 criteria

    No need for further workup, as <2% chance of PE.

    If no criteria are positive and clinician’s pre-test probability is <15%, PERC Rule criteria are satisfied.
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    Dr. Jeffrey Kline
    Dr. Jeffrey Kline
    From the creator

    Dr. Kline's comments about the PERC Rule for MDCalc:

    I derived the PERC rule to give some objective backing to the situation where you have considered PE in the active differential diagnosis, but really do not think any diagnostic test is necessary. To capture that concept scientifically, I validated the PERC rule to exclude PE with a gestalt pretest probability of <15% for PE and all eight criteria of the PERC rule are negative.

    About the creator

    Jeffrey Kline, MD, is a professor of emergency medicine and physiology and the vice chair of research at Indiana University. Among other research, he has conducted clinical studies using breath-based methods to diagnose and assess the severity of PE. He co-founded BreathQuant Medical Systems Inc to advance practical applications of 16 patents for medical devices. Dr. Kline has published over 50 manuscripts in the area of PE.

    Are you Dr. Jeffrey Kline? 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.
    Content Contributors
    • Benjamin Slovis, MD
    About the Creator
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