CD4, IHC with Interpretation

Test Code

19146

CPT Codes
88342

Preferred Specimen

Formalin-fixed paraffin embedded tissue

Other Acceptable Specimens

Five 4-micron unstained slides • Fixed tissue • Tissue in neutral buffered formalin

Instructions

Pathology report is required

Transport Container

IHC specimen transport kit

Transport Temperature

Room temperature

Specimen Stability

Room temperature: Indefinite
Refrigerated: Indefinite
Frozen: Unacceptable

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

Received frozen

Methodology
Immunohistochemical Stain (IHC)

Setup Schedule

Mon-sat

Report Available

2-3 days

Clinical Significance

The following CD markers are expressed on specific hemotologic cells. Individual and a series of IHC markers can be run on unknown cells and presence or absence of the antigen can help to characterize the cell of interest.

Performing Laboratory

Quest Diagnostics Nichols Institute-San Juan Capistrano, CA

33608 Ortega Highway

San Juan Capistrano, CA 92675-2042

Last Updated: November 6, 2024

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.