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Test ID TCGR T-Cell Receptor Gene Rearrangement, PCR, Blood

Useful For

Determining whether a T-cell population is polyclonal or monoclonal using blood specimens

Method Name

Polymerase Chain Reaction (PCR)

Reporting Name

T Cell Receptor Gene Rearrange, B

Specimen Type

Whole blood


Shipping Instructions


Specimen must arrive within 7 days (168 hours) of draw.



Necessary Information


Include relevant clinical information and cytogenetics 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 specimen in original tube. Do not aliquot.


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Whole blood Ambient (preferred) 7 days
  Refrigerated  7 days

Reference Values

An interpretive report will be provided.

Positive, negative, or indeterminate for a clonal T-cell population

Day(s) Performed

Monday through Friday

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)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
TCGR T Cell Receptor Gene Rearrange, B In Process

 

Result ID Test Result Name Result LOINC Value
18210 Final Diagnosis: 22637-3
608951 Signing Pathologist 19139-5

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 U.S. Food and Drug Administration.

Report Available

5 to 10 days

NY State Approved

Yes

Forms

1. Hematopathology Patient Information (T676) in Special Instructions

2. If not ordering electronically, complete, print, and send a Hematopathology/Cytogenetics Test Request (T726) with the specimen.