Search our Test Catalog. Specify what to search (name, test code, titles, everywhere) and how to search (begins with, contains)

Unit Code 83122:
T-Cell Receptor Gene Rearrangement

Print Friendly View
Print Page Email Page

Specimen Required

If ordering electronically, please complete a "MayoConnect Additional

Test Information Form" (Supply T357 or see Special Instructions) with

the specimen. If not ordering electronically, please complete and submit a

"Hematopathology/Molecular Oncology  Request Form" (Supply T241)

with the specimen. Include relevant clinical information and cytogenetics

results, if available.

 

Specimen must arrive within 72 hours of collection.

 

Submit 1 of the following specimens:

 

Blood

Draw blood in a lavender-top (EDTA) tube(s), and send 5 mL

of EDTA whole blood in original VACUTAINER(S). Invert several

times to mix blood. Forward unprocessed whole blood promptly at

ambient temperature.

 

Bone Marrow

Place 2 mL of bone marrow in a lavender-top (EDTA) tube(s)

and send in original VACUTAINER(S). Invert several times to mix

bone marrow. Forward unprocessed bone marrow promptly at

ambient temperature.

 

Solid Tissue

Frozen tissue:

Obtain 200 mg of fresh tissue. Freeze tissue within 1 hour of collection.

Send specimen frozen in plastic container.

 

Paraffin-embedded tissue:

A paraffin block must be submitted. (Bone marrow aspirate clot

specimens, slides, or paraffin shavings are not acceptable.)

Note:      Southern blot testing cannot be performed on

                  paraffin-embedded tissue.

 

Spinal Fluid

Obtain 5 mL to 10 mL of spinal fluid. Forward promptly in a screw-capped,

sterile vial at ambient temperature.

Transport Temperature

Varies
Ambient\Refrig OK\Frozen NO - blood, bone marrow, csf
Frozen\Refrig NO\Ambient NO - tissue
Ambient\Refrig NO\Frozen NO - paraffin-embedded tissue

Reject Due To

Specimens Other Than:                 NA

Anticoagulants Other Than:           ACD or EDTA

Hemolysis:                                          NA

Thawing:                                              Warm OK; Cold OK

Lipemia:                                               NA

Day(s) and Time(s) Test Performed

Monday through Friday

Key