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TRAcP, IHC without Interpretation [40023X]
Test Code40023
CPT Codes
88342
Preferred Specimen
Formalin-fixed, paraffin-embedded tissue block
Other Acceptable Specimens
3 unstained, positively charged slides, submitted in IHC specimen transport kit
Transport Container
IHC specimen transport kit
Transport Temperature
Room temperature
Specimen Stability
Room temperature: Indefinitely
Refrigerated: Indefinitely
Frozen: Unacceptable
Refrigerated: Indefinitely
Frozen: Unacceptable
Methodology
Immunohistochemistry (IHC)
FDA Status
This test was developed and its performance characteristics have been determined by Quest Diagnostics Nichols Institute, Chantilly, VA. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. Performance characteristics refer to the analytical performance of the test.
Setup Schedule
Set up: Mon-Fri; Report available: Next day
Clinical Significance
The histochemical identification of hairy cell leukemia via tartrate-resistant acid phosphatase assay has been a standard for over two decades. Anti-TRAcP antibody labels the cells of hairy cell leukemia (HCL) with a high degree of sensitivity and specificity. Other cells stained with this antibody are tissue macrophages and osterclasts, which also express abundant TRAcP activity.
