Lymphocyte Subset Panel 4

Lymphocyte Subset Panel 4

Test Code

7924
86360
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
7924
86360
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
Ordering Restrictions may apply. Please provide SERVICE AREA INFORMATION to find available tests you can order.
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection may be available in your area for purchase through Quest Mobile.

Clinical Significance

Lymphocyte Subset Panel 4 - This panel separately reports CD4+ T cells (CD4) and CD8+ T cells (CD8) in the blood, as well as a calculated CD4/CD8 ratio. This panel may provide information of the immune status of individuals living with HIV. It can be used to help establish baseline values and track antiretroviral (ARV)-related treatment progress. It can also be used to evaluate helper and suppressor cell immune status in individuals with other immunodeficiency diseases.

The CD4 count is the most valuable indicator of immune status in HIV-infected individuals. It can help determine the need for prophylaxis for ...

Test Resources

None found for this test
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Test Details

Includes

  • % CD4, Absolute CD4+ Cells, % CD8, Absolute CD8+ Cells, CD4/CD8 Ratio, Absolute Lymphocytes

Methodology

Flow Cytometry (FC)

Assay Category

This test code is for non-New York patient testing. For New York patient testing, use test code 17331.

Reference Range(s)

See Laboratory Report

Alternative Name(s)

Flow

LOINC® Codes, Performing Laboratory

Service Area must be determined
% CD4, Absolute CD4+ Cells, % CD8, Absolute CD8+ Cells, CD4/CD8 Ratio, Absolute Lymphocytes

Methodology

Flow Cytometry (FC)
This test code is for non-New York patient testing. For New York patient testing, use test code 17331.

Reference Range(s)

See Laboratory Report

Alternative Name(s)

Flow
Service Area must be determined

Preferred Specimen(s)

5 mL whole blood collected in an EDTA (lavender-top) tube

Minimum Volume

0.5 mL

Collection 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

Reject Criteria

Hemolysis • Lithium heparin (green-top) tube • ACD (yellow-top) tube • Clotted

Setup Schedule

Service Area must be determined
5 mL whole blood collected in an EDTA (lavender-top) tube
0.5 mL
If a CBC is also required, a separate EDTA (lavender-top) tube must be submitted.
5 mL (or 3 mL pediatric) EDTA (lavender-top) tube
Room temperature
Room temperature: 72 hours
Refrigerated: Unacceptable
Frozen: Unacceptable
Hemolysis • Lithium heparin (green-top) tube • ACD (yellow-top) tube • Clotted
Service Area must be determined
Ordering Restrictions may apply. Please provide SERVICE AREA INFORMATION to find available tests you can order.
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection may be available in your area for purchase through Quest Mobile.
Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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