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Cell Count and Differential, Synovial Fluid : 4562
Test CodeSYNCT or 4562
CPT Codes
89051
Includes
Color, Appearance, Total Nucleated Cell Count, Neutrophils %, Lymphocytes %, Monocyte/Macrophage %, Eosinophils %, Synoviocytes %
Transport Container
Preferred Specimen
3 mL synovial fluid in an EDTA (lavender-top) tube or sodium heparin (green-top) tube
Alternative Specimens
Red-top (non-clot activator/non-gel) tube or plastic vial
Minimum Volume
1 mL
3 mL synovial fluid in an EDTA (lavender-top) tube or sodium heparin (green-top) tube
Alternative Specimens
Red-top (non-clot activator/non-gel) tube or plastic vial
Minimum Volume
1 mL
Transport Temperature
Room temperature.
Specimen Stability
Room temperature: 48 hours; Refrigerated: 48 hours; Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Clotted; Gel separator tube unacceptable
Methodology
Microscopy Visual Examination
Setup Schedule
Monday - Saturday
Report Available
1 day
Reference Range
Color Straw/Yellow
Appearance Clear/Hazy
Total Nucleated Cell Count <150 cells/uL
Neutrophils, % 0-24 %
Lymphocytes, % 0-74 %
Monocyte/Macrophage, % 0-69 %
Eosinophils, % 0-2 %
Basophils, % 0 %
Synoviocytes 0-15 %
Clinical Significance
Immunologic, mechanical, chemical or bacteriologic damage may alter the permeability of the membrane and capillaries to produce varying degrees of inflammatory response. Various disorders produce changes in the chemical constituents of the joint fluid and in the type of cell population present.
Performing Laboratory
med fusion
