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Lymphocyte Subset Panel 2

Test Code
36420


CPT Codes
86355, 86359, 86360<br /> <strong>This test is not available for New York patient testing. For&nbsp;NY patient testing use test code 17329. <br /> </strong>

Includes
% CD3 (Mature T Cells), Absolute CD3+ Cells, % CD4, Absolute CD4+ Cells, % CD8, Absolute CD8+ Cells, CD4/CD8 Ratio, % CD19 (B Cells), Absolute CD19+ Cells, Absolute Lymphocytes


Preferred Specimen
5 mL whole blood collect in an EDTA (lavender-top) tube


Minimum Volume
0.5 mL


Instructions
Do not freeze. Do not transfer whole blood to M4. Submit the preferred EDTA tubes at room temperature. Volumes less than 1 mL should be submitted in a pediatric EDTA tube.


Transport Temperature
Room temperature


Specimen Stability
Room temperature: 72 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



Clinical Significance
T-lymphocyte count assists in evaluating cellular immunocompetency.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.