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Lymphocyte Subset Panel 4 (NY)
Test Code17331
CPT Codes
86360 (x2)<br>This test is not available for non-New York patient testing. For non-New York patient testing please use test code 7924
Includes
Absolute Lymphocytes, Absolute CD4+ Cells, CD4/CD8 Ratio, %CD4, %CD8
Preferred Specimen
5 mL whole blood collected in an EDTA (lavender-top) tube
Minimum Volume
0.5 mL
Other Acceptable Specimens
Whole blood collected in: sodium heparin (green-top) tube
Instructions
Maintain the specimen at ambient temperature. Do not refrigerate. It is recommended that the sample be drawn shortly before courier pick up and be received within 24 hours.
Transport Temperature
Room temperature
Specimen Stability
EDTA blood
Room temperature: 30 hours
Refrigerated: Unacceptable
Frozen: Unacceptable
Heparin blood
Room temperature: 48 hours
Refrigerated: Unacceptable
Frozen: Unacceptable
Room temperature: 30 hours
Refrigerated: Unacceptable
Frozen: Unacceptable
Heparin blood
Room temperature: 48 hours
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)
Setup Schedule
Set up: Daily; Report available: 2-3 days
Reference Range
See Laboratory Report
Clinical Significance
Assists in evaluating helper and suppressor cell immune status in immunodeficiency diseases such as AIDS.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153