Ordering Recommendation

Aid in the diagnosis of T-cell lymphoproliferative disorders.

Mnemonic
T CELL-F
Methodology

Polymerase Chain Reaction/Capillary Electrophoresis

Performed

DNA Isolation: Sun-Sat
Assay: Mon, Wed-Fri

Reported

5-7 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Lavender (EDTA), bone marrow (EDTA), or tissue. Also acceptable: DNA extracted by CLIA certified lab.

Specimen Preparation

Whole Blood: Do not freeze. Transport 5 mL. (Min: 1 mL)
Bone marrow: Do not freeze. Transport 3 mL. (Min: 1 mL)
Fresh Tissue: Freeze immediately. Transport 100 mg or 0.5-2.0 cm3 tissue
FFPE Tumor Tissue: Formalin fix (10 percent neutral buffered formalin) and paraffin embed tissue. Protect from excessive heat. Tissue block will be returned after testing. Transport tissue block or four 10-micron shavings in a tissue transport kit (ARUP Supply #47808) available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787.
Extracted DNA: Transport 40uL DNA with at least 50 ng/uL concentration. Transport DNA in a tissue transport kit (ARUP Supply #47808) available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787.

Storage/Transport Temperature

Whole Blood, Bone Marrow or Extracted DNA: Refrigerated.
Fresh Tissue: Frozen on dry ice.
FFPE Tumor Tissue: Room temperature. Also acceptable: Refrigerated. Ship in cooled container during summer months.

Unacceptable Conditions

Whole Blood, Bone Marrow or Extracted DNA: Plasma, serum, or DNA extracted by a non-CLIA lab. Specimens collected in anticoagulants other than EDTA or sodium heparin. Clotted or grossly hemolyzed specimens.
Tissue: Specimens fixed/processed in alternative fixatives, heavy metal fixatives (B-4 or B-5), or tissue sections on slides. Decalcified specimens.

Remarks
Stability

Whole Blood or Bone Marrow: Ambient: 24 hours; Refrigerated: 5 days; Frozen: Unacceptable
Fresh Tissue:
Ambient: Unacceptable; Refrigerated: 2 hours; Frozen: 1 year
FFPE Tumor Tissue:
Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Unacceptable
Extracted DNA:
Ambient: 1 month; Refrigerate: Indefinitely; Frozen: Indefinitely

Reference Interval
Interpretive Data

Refer to report.

Compliance Category

Laboratory Developed Test (LDT)

Note
Hotline History
N/A
CPT Codes

81342

Components
Component Test Code* Component Chart Name LOINC
0055567 T-Cell Clonality by PCR 21753-9
2006285 T-Cell Clonality Source
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • T Cell Gamma
  • T Cell Gene Rearrangement
  • T-cell receptor gamma rearrangment
  • T-Cell Receptor Gene Rearrangement
  • TCRG
T-Cell Clonality Screening by PCR