Test Name: T-Cell Gene Rearrangement
Methodology: Molecular Genetics
Detection of clonal T-cell receptor gamma gene rearrangements by PCR of variable and joining regions.
•Peripheral blood: 4 mL in EDTA tube.
•Bone marrow: 2 mL in EDTA tube.
•FFPE tissue: Paraffin block is preferred. Alternatively, send 1 H&E slide plus 5-10 unstained slides cut at 5 or more microns. Please use positively-charged slides and 10% NBF fixative. Do not use zinc fixatives.
•Fresh tissue: Two pieces minimum, 0.2 cm3 in RPMI.
Storage and Transport
Refrigerate fresh tissue until shipping. For all specimens, use cold pack for transport. Make sure cold pack is not in direct contact with specimen.
Specimen Rejection Criteria
Turn Around Time (TAT): 7 Days
CPT Codes*: 81342
*The CPT codes provided with our Test Descriptions are based on AMA guidelines and are for informational purposes only. Correct CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.