Patient Activity Scale (PAS) for RA
Why Use
Captures disease fluctuations and patient-reported symptoms that may not be evident through laboratory tests or physical examination. Offers a way to engage patients in their own care by focusing on their perceived function and well-being.
When to Use
Use in patients with rheumatoid arthritis (RA) to assess disease activity from their own perspective. Helpful during routine follow-ups to monitor treatment response or track disease progression over time.
Formula
Pearls / Pitfalls
May overestimate disease activity in patients with comorbidities such as fibromyalgia, depression, or other chronic pain conditions. Combines the Health Assessment Questionnaire (HAQ), a visual analog scale (VAS) for pain, and a global severity scale.
Advice
Interpret results alongside clinical findings and laboratory data to guide treatment decisions. If scores remain elevated: Reassess the current RA treatment regimen and consider escalation if appropriate. Consider evaluating for noninflammatory causes of symptoms, such as fibromyalgia. Repeat the score regularly to track treatment effectiveness and disease control.
More Information
Interpretation: PAS Disease Activity 0.00-0.25 Remission 0.26-3.70 Low/minimal 3.71-7.99 Moderate 8.00-10.00 High/severe