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T-Cell Receptor Gamma Gene Rearrangement
| Item |
Value |
| Available Stat? |
No |
| Test code |
TCRG |
| Performed by |
Quest |
| Sendout? |
yes |
| Method |
PCR |
| Container type |
Lavender top |
| Amount to Collect |
|
| Sample type |
Whole blood, bone marrow |
| Preferred volume |
| Whole blood |
5 mL |
|
Marrow |
1 mL |
|
| Min. Volume |
|
| Processing notes |
Do not aliquot or freeze. Store ambient and transport to CB. Order Quest test code 90509. |
| Normal range |
|
| Synonyms |
TCR Gamma; T-cell clonality |
| Stability |
Room temperature 1 week, Refrigerated 1 week. |
| Turn around times |
5 - 7 days |
| Additional information |
This assay which interrogates the T-cell receptor gamma locus (TCRG) by a PCR method based on the BIOMED-2 consensus, is useful for establishing clonality of T-cell lymphoid neoplasms and identification of minimal residual disease or early recurrence in patients with a previous diagnosis of a T-cell neoplasm. It can be used in association with the T-cell receptor beta (TCRB) PCR assay (Test code 91446) since false-negative results can occur in up to 5-10% of T-cell malignancies when testing for TCRG PCR only. |
| CPT coding |
81342-90, 84999-90 |
| Last Updated |
8/7/2014 9:51:21 AM |
| Entry Number |
1576 |
