CD4 Immunostain, Technical Component Only
Use
The CD4 Immunostain is primarily useful for identifying T helper cells, histiocytes, and monocytes. It's also employed to support T cell or histiocytic lineage in hematolymphoid neoplasms, offering diagnostic insights especially for hematopathological evaluations.
Special Instructions
This test includes only technical performance of the stain and excludes pathologist interpretation. If interpretation is required, a separate order for Pathology Consultation (PATHC) must be placed.
Limitations
Stability and immunoreactivity of paraffin sections can decline over time, which may impact results. Unsuitable glass slides can lead to inconsistent staining due to poor slide surface chemistry. The test does not provide interpretative results without additional pathology consultation.
FDA ApprovedNew York Approved
Methodology
Immunoassay (IHC)
Biomarkers
LOINC Codes
- Order only;no result
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Tissue (FFPE)
Volume
Not provided
Minimum Volume
Not provided
Container
Immunostain Technical Only Envelope
Collection Instructions
Collect formalin-fixed, paraffin-embedded tissue block or provide 2 unstained, positively charged slides (4 microns thick). Use the provided Immunostain Technical Only Envelope for transport.
Causes for Rejection
Wet/frozen tissue, Cytology smears, Nonformalin fixed tissue, Nonparaffin embedded tissue, Noncharged slides, ProbeOn slides, Snowcoat slides
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Ambient (preferred) |