Page 143 - Canine Lameness

Table 9.1 Typical joint fluid analysis findings associated with normal and diseased joints.

Protein
Category Subtype Appearance Volume concentration (g/dl) Mucin clot TNCC % Neutrophils % Mononuclear cells
Normal N/A Clear, pale Normal 1.5–3.0 Good <3 000 <10 80–90
yellow
Nonsuppurative Osteoarthritis Slightly Reduced, >3.0 Fair to poor 3 000–5 000 <10 80–90
and trauma cloudy and normal, or
red (trauma) increased
Suppurative Infectious and Cloudy and Increased >3.0 Fair to very 3 000–100 000 20–99 0–80
immune- turbid poor
mediated
Neoplastic Highly variable – cytology primarily used as the differentiating feature
TNCC, total nucleated cell count (cells/μl).

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