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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 body fluid collected in EDTA (lavender-top), or sodium heparin (green-top) tube
Minimum Volume
1 mL
Other Acceptable Specimens
3 mL bronchial wash or lavage collected in a plastic screw-cap vial
Transport Temperature
Refrigerated (cold packs)
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
Monday-Saturday All Shifts Report available: Next Day
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.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153
Last Updated: November 6, 2024