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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

    Patient Activity Scale (PAS) for RA

    Quantifies severity of rheumatoid arthritis (RA) using patient-reported symptoms.
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    INSTRUCTIONS

    Note: the PAS II is an alternative to the PAS. PAS II uses a slightly different questionnaire with fewer questions than the original PAS, though the overall accuracy of the two is the same.

    When to Use

    Do you use the PAS for RA and want to contribute your expertise? Join our contributor team!

    Health Assessment Questionnaire Disability Index
    Dress and groom - is the patient able to:
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Rise - is the patient able to:
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Eat - is the patient able to:
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Walk - is the patient able to:
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Hygiene - is the patient able to:
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Reach - is the patient able to:
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Grip - is the patient able to:
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Other - is the patient able to:
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Without any difficulty
    With some difficulty
    With much difficulty
    Unable
    Aids or devices used by patient
    No
    Yes
    No
    Yes
    No
    Yes
    No
    Yes
    No
    Yes
    No
    Yes
    No
    Yes
    Patient needs help from another person
    No
    Yes
    No
    Yes
    No
    Yes
    No
    Yes
    No
    Yes
    No
    Yes
    No
    Yes
    No
    Yes
    Pain Visual Analog Scale
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    Patient Global Assessment of Disease Activity
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10

    Result:

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    Next Steps
    Evidence
    Creator Insights

    Advice

    Do you use the PAS for RA and want to contribute your expertise? Join our contributor team!

    About the Creator
    Dr. Frederick Wolfe
    Are you Dr. Frederick Wolfe?