| ‣ |
|---|
2000 → Inflammatory
50,000 → Infection (not specific)
| Common Marker | Normal | Non-inflammatory Arthritis (‣) | ‣ (Gout in mono) | !Septic Arthritis | ‣ | ‣ |
|---|---|---|---|---|---|---|
| Appearance | yellow transparent | yellow transparent | exudative | Opaque, exudative | Bloody | Translucent |
| Viscosity | + | + | - | variable | variable | |
| WBC count | <200 | 200-2,000 | >2,000 | >80,000 (some says 50,000) | 2,000 - 80,000 | |
| PMN | <25% | <25% | > 50% | >75% | 50-75% | |
| Next Step - Special Test | Microscopy (Crystals) | GS, C & S | Cytology |