This is a rheumatology decision tool.
Inflammatory vs Noninflammatory Characteristics

1. Joint pain: Yes (with activity and rest)
2. Joint swelling: Soft tissue
3. Local erythema: Sometimes
4. Local warmth: Sometimes
5. Morning stiffness: Prolonged (More than 60 minutes)
6. Systemic symptoms: Common
7. ESR, CRP: Increased
8. Hemoglobin: Normal or low
9. Serum albumin: Normal or low
10. Synovial fluid WBC/mL: Greater than or equal to 2000
11. Synovial fluid % PMN: Greater than or equal to 75%

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