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Cell Count and Differential, Fluid, Other
Test Code20913
CPT Codes
89051
Includes
Color, Appearance, Total Nucleated Cell Count, Neutrophils %, Lymphocytes %, Monocyte/Macrophage %, Eosinophils %, Basophils %, Mesothelial %
Preferred Specimen
3 mL fluid collected in an EDTA (lavender-top) or sodium heparin (green-top) tube
Minimum Volume
1 mL
Other Acceptable Specimens
Bronchial lavage/wash in a sterile plastic transport tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 48 hours
Refrigerated: 48 hours
Frozen: Unacceptable
Refrigerated: 48 hours
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Clotted
Methodology
Automated analyzer and/or Manual Microscopic examination
Setup Schedule
Sets up 6 days a week.
Limitations
Traumatic tap will affect results.
Clinical Significance
Immunologic, mechanical, chemical or bacteriologic damage may alter the permeability of the membrane and capillaries to produce varying degrees of inflammatory response.
