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Lymphocyte Subset Panel 3
Test CodeTCELL
Quest Code
7195
Alias/See Also
T CELL LYMPH ENUMERATION
CPT Codes
86360, 86359
Includes
% CD3 (Mature T Cells), Absolute CD3+ Cells, % CD4, Absolute CD4+ Cells, % CD8, Absolute CD8+ Cells, CD4/CD8 Ratio, Absolute Lymphocytes
Preferred Specimen
5 mL whole blood collected in an EDTA (lavender-top) tube
Minimum Volume
0.5 mL
Instructions
If a CBC is also required, a separate EDTA (lavender-top) tube must be submitted.
Transport Container
5 mL (or 3 mL pediatric) EDTA (lavender-top) tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 72 hours
Refrigerated: Unacceptable
Frozen: Unacceptable
Refrigerated: Unacceptable
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Lithium heparin (green-top) tube • ACD (yellow-top) tube • Clotted
Methodology
Flow Cytometry (FC)
FDA Status
This test code is for non-New York patient testing. For New York patient testing, use test code 17330.
Setup Schedule
Daily
Report Available
3-5 days
Reference Range
See Laboratory Report
Clinical Significance
T-lymphocyte count assists in evaluating cellular immunocompetency.
Performing Laboratory
| Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
| 33608 Ortega Highway |
| San Juan Capistrano, CA 92675-2042 |
