Lymphocyte Subset Panel 4 (NY)

Test Code

17331

CPT Codes
86360 (x2)<br><strong>This test code is for New York patient testing. For non-New York patient testing, use test code 7924.</strong>

Includes

% 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

Other Acceptable Specimens

Whole blood collected in: sodium heparin (green-top) tube

Instructions

Blood specimens should be maintained at room temperature during transport. For optimal results specimen should reach the laboratory within 24 hours of collection.

The change reflects the Center for Disease Control and Prevention (CDC) Guidelines and Recommendations for lymphocyte subsets performed by the single-platform method (CDC MMWR Weekly Report, January 31, 2003, Vol.52 No.RR2)

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

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis • Lithium heparin (green-top) tube • ACD (yellow-top) tube • Samples beyond stability • Insufficient volume • Samples transported at >37° C • Received refrigerated • Received frozen

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

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.