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HelpTest ID BLOD1294 T-Cell Receptor Gene Rearrangement, PCR, Blood
Useful For
Determining whether a T-cell population is polyclonal or monoclonal using blood specimens
Specimen Type
Whole bloodShipping Instructions
Specimen must arrive within 7 days of collection.
Necessary Information
Include relevant clinical information and cytogenetic results, if available.
Specimen Required
Container/Tube:
Preferred: Lavender top (EDTA)
Acceptable: Yellow top (ACD)
Specimen Volume: 4 mL
Collection Instructions:
1. Invert several times to mix blood.
2. Send whole blood specimen in original tube. Do not aliquot.
Reject Due To
| Gross hemolysis | Reject |
| Moderately to severely clotted | Reject |
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole blood | Ambient (preferred) | 7 days | |
| Refrigerated | 7 days |
Day(s) Performed
Monday through Friday
Report Available
5 to 10 daysMethod Name
Polymerase Chain Reaction (PCR)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
81340-TCB (T cell antigen receptor, beta) (eg, leukemia and lymphoma), gene rearrangement analysis to detect abnormal clonal population(s); using amplification methodology (eg, PCR)
81342-TCG (T cell receptor, gamma) (eg, leukemia and lymphoma), gene rearrangement analysis, evaluation to detect abnormal clonal population(s)
Reporting Name
T Cell Receptor Gene Rearrange, BReference Values
An interpretive report will be provided.
Positive, negative, or indeterminate for a clonal T-cell population
Test Classification
This test was developed using an analyte specific reagent. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.Forms
1. Hematopathology Patient Information (T676)
2. If not ordering electronically, complete, print, and send a Hematopathology/Cytogenetics Test Request (T726) with the specimen.
Special Instructions
Secondary ID
83122SANFORD LABORATORY INTERFACE BUILD INFORMATION
| Result Code | Result Code Description |
|---|---|
| 15831 | Final Diagnosis: |
| 26193 | Signing Pathologist |