TCR-G (PCR) Blood
Test Mnemonic
TGAMMA
CPT Codes
- 81342 - QTY (1)
- G0452 - QTY (1)
Aliases
- T cell receptor gene rearrangement by PCR
- Tgamma
- T-gamma by PCR
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 8 mL | Whole blood | EDTA (Lavender) | Ambient | Ambient |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 6 ug | Extracted DNA | Clean container | Ambient | Ambient | Please indicate the tissue source of the DNA. |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | Whole blood- 48 hours; Extracted DNA- 24 hours |
| Refrigerated | Whole blood- 7 days; Extracted DNA- 3 years |
| Frozen | Whole blood- unacceptable; Extracted DNA- unacceptable |
Days Performed
2 days per week
Turnaround Time
7 days
Methodology
| Name | Description |
|---|---|
| Capillary Electrophoresis (CE) | |
| Polymerase Chain Reaction (PCR) |
Reference Range
Special Info
Whole blood is good up to 48 hours. Refrigerated up to 7 days.
Clinical Info
Diagnosis of T-cell lymphomas.