Lymphocyte Subset Panel 3

Test Code

LAB6040

Quest Code

7195

CPT Codes
86360, 86359<br><strong>This test is not available for New York patient testing. For NY patient testing use test code 17330.</strong>

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

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

Reference Range

See Laboratory Report

Clinical Significance

T-lymphocyte count assists in evaluating cellular immunocompetency.

Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042

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.