Synovial Fluid Analysis

 

 

  OA Inflammatory / RA Gout Infection
WCC per mm3 2000 < 75 000 < 50 000 > 80 000
% Neutrophils / PMN < 25% < 50% > 75% > 75%
Viscosity Normal Variable High Low
Glucose (percentage relative to serum) Normal Low Normal Low
Other     Crystals