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Test Code TCGBM T-Cell Receptor Gene Rearrangement, PCR, Bone Marrow

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Reporting Name

T Cell Receptor Gene Rearrange, BM

Specimen Type

Bone Marrow


Shipping Instructions


Specimen must arrive within 7 days of collection.



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: 2 mL

Collection Instructions:

1. Invert several times to mix bone marrow.

2. Send bone marrow specimen in original tube. Do not aliquot.


Reject Due To

Gross hemolysis Reject
Moderately to severely clotted Reject

Specimen Stability Information

Specimen Type Temperature Time Special Container
Bone Marrow Ambient (preferred) 7 days
  Refrigerated  7 days

Specimen Minimum Volume

1 mL

Day(s) Performed

Monday through Friday

Specimen Retention Time

Bone marrow: 2 weeks; Extracted DNA: 3 months

Report Available

5 to 10 days

Reference Values

An interpretive report will be provided.

 

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

Useful For

Determining whether a T-cell population is polyclonal or monoclonal

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
TCGBM T Cell Receptor Gene Rearrange, BM In Process

 

Result ID Test Result Name Result LOINC Value
19957 Final Diagnosis: 22637-3
608952 Signing Pathologist 19139-5

Forms

1. Hematopathology Patient Information (T676)

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