TCR-G (PCR) Other
Test Mnemonic
TCRGO
CPT Codes
- 81342 - QTY (1)
- G0452 - QTY (1)
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 10 mm square | Paraffin block, formalin fixed | Clean container | Ambient | Ambient | Paraffin-embedded tissue should be delivered to Surgical Pathology for accessioning and cutting. Specimens that undergo heavy metal fixation or are decalcified with strong acids (i.e., formic acid) are not acceptable for molecular testing. Non-decalcified specimens or samples that undergo EDTA decalcification are acceptable. |
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 | Frozen tissue- unacceptable; Paraffin-embedded Tissue- indefinitely; Extracted DNA- 24 hours |
| Refrigerated | Frozen tissue- unacceptable; Paraffin-embedded tissue- unacceptable; Extracted DNA- 3 years |
| Frozen | Frozen tissue- indefinitely; Paraffin-embedded tissue- 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
Frozen tissue should be delivered to Surgical Pathology for accessioning and cutting. Paraffin-embedded tissue should be delivered to Surgical Pathology for accessioning and cutting.