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Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog
CELL COUNT WITH DIFFERENTIAL, CSF |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB3313 Geisinger Epic ID: 69115 | |
SPECIMEN COLLECTION |
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Specimen type: |
Cerebrospinal fluid (CSF) including lumbar puncture or shunt | |
Preferred collection container: |
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Specimen required: |
2-3 mL (preferred), 1 mL (minimum) | |
Special notes: |
First tube collected in a series should not be used for cell counts. Indicate specimen source on label and requisition. Clotted and partially clotted specimens will receive a comment, "Fluid clotted cell count questionable". " | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Do not centrifuge or freeze. | |
Transport temperature: |
Room temperature. | |
Specimen stability: |
Room temperature: 4 hours. | |
Rejection criteria: |
SEE SUPERVISOR | |
TEST DETAILS |
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Reference interval: |
Color: Colorless Clarity: Clear Newborn (0-7 days) TNC <30 cells/uL RBC <1,000 cells/uL Neutrophils 0-8% Lymphocytes 5-35% Monocytes 50-90% Eosinophils 0-1% Infant (7 days - 3 months) TNC <7 cells/uL RBC <50 cells/uL Neutrophils 0-8% Lymphocytes 5-35% Monocytes 50-90% Eosinophils 0-1% Child (3 months - 18 years) TNC <5 cells/uL RBC <5 cells/uL Neutrophils 0-6% Lymphocytes 40-80% Monocytes 15-45% Eosinophils 0-1% Adult (>18 years) TNC <5 cells/uL RBC <5 cells/uL Neutrophils 0-6% Lymphocytes 40-80% Monocytes 15-45% Eosinophils 0-1% Other cells rarely present in CSF fluid. Reference ranges modified from Body Fluid Analysis for Cellular Composition; Proposed Guideline, Clinical and Laboratory Standards Institute, H56-P, Vol. 25, Nov. 20, 2005. |
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Interpretation guide: |
Red cells are increased in trauma and hemorrhage. White blood cells are increased in inflammatory and infectious processes: - neutrophils predominate in bacterial infections - lymphocytes predominate in viral infection - macrophages may be increased in inflammatory and infectious processes - eosinophils may be increased in parasitic or fungal infections. |
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CPT code(s): |
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| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
Color, Clarity, Total cells count (TCC) (Note: This includes WBC count and other nucleated cells including epithelial cells, histiocytes, macrophages, mesothelial cells etc.) , RBC, TNC differential = % of each cell type in 100 total nucleated cells | |
Methodology: |
Electronic resistance detection enhanced by hydrodynamic focusing and flow cytometry Hemocytometer Microscopic Examination |
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Synonyms: |
BFC, cell count, fluid cell count, CSF cell count
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Clinical significance: |
Quantitative determination of cells including WBCs, RBCs, and CSF lining cells in CSF, which aids in the diagnoses of autoimmune disorders, malignancy, infection, and trauma. | |
Doctoral Director(s:) |
Mary Dhesi MD | |
| Review Date: | 04/04/2023 | |
Performing Locations
Geisinger Wyoming Valley Medical Center