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Test Code BADX BCR/ABL1, Qualitative, Diagnostic Assay, Varies

Reporting Name

BCR/ABL1, RNA-Qual, Diagnostic

Useful For

Diagnostic workup of patients with a high probability of BCR-ABL1-positive hematopoietic neoplasms, predominantly chronic myelogenous leukemia and acute lymphoblastic leukemia

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Varies


Advisory Information


This test is only qualitative and should not be used for routine monitoring (ie, quantitative mRNA level).

 

Monitoring of most patients with chronic myeloid leukemia (CML) should be performed using BCRAB / BCR/ABL, p210, mRNA Detection, Reverse Transcription-PCR (RT-PCR), Quantitative, Monitoring Chronic Myelogenous Leukemia (CML), Varies.

 

Monitoring of patients known to carry a p190 fusion should be performed using BA190 / BCR/ABL, p190, mRNA Detection, Reverse Transcription-PCR (RT-PCR), Quantitative, Monitoring Assay, Varies.

 

For information on which test to order for various scenarios, see BCR/ABL1 Ordering Guide for Blood and Bone Marrow in Special Instructions.



Shipping Instructions


Refrigerate specimens must arrive within 5 days of collection, and ambient specimens must arrive with 3 days (72 hours) of collection. Collect and package specimens as close to shipping time as possible.



Necessary Information


The following information is required:

1. Pertinent clinical history including if the patient has a diagnosis of chronic myelogenous leukemia or other BCR/ABL1-positive neoplasm

2. Date of collection

3. Specimen source (blood or bone marrow)



Specimen Required


Submit only 1 of the following specimens:

 

Specimen Type: Whole blood

Container/Tube:

Preferred: Lavender top (EDTA)

Acceptable: Yellow top (ACD)

Specimen Volume: 10 mL

Collection Instructions:

1. Invert several times to mix blood.

2. Send specimen in original tube.

3. Label specimen as blood.

 

Specimen Type: Bone marrow

Container/Tube:

Preferred: Lavender top (EDTA)

Acceptable: Yellow top (ACD)

Specimen Volume: 4 mL

Collection Instructions:

1. Invert several times to mix bone marrow.

2. Send specimen in original tube.

3. Label specimen as bone marrow.


Specimen Minimum Volume

Peripheral blood: 4 mL
Bone marrow: 2 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Varies Refrigerated (preferred) 5 days PURPLE OR PINK TOP/EDTA
  Ambient  72 hours PURPLE OR PINK TOP/EDTA

Reference Values

A qualitative result is provided that indicates the presence or absence of BCR/ABL1 mRNA. When positive, the fusion variant is also reported.

Day(s) and Time(s) Performed

Monday through Saturday; a.m.

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

81206

81207

81208

LOINC Code Information

Test ID Test Order Name Order LOINC Value
BADX BCR/ABL1, RNA-Qual, Diagnostic In Process

 

Result ID Test Result Name Result LOINC Value
39466 Diagnostic BCR/ABL1 Result No LOINC Needed
MP001 Specimen Type 31208-2
19783 Interpretation 69047-9

Reject Due To

Gross hemolysis Reject
Other Moderately to severely clotted

Method Name

Reverse Transcription-Polymerase Chain Reaction (RT-PCR) Multiplex PCR

Secondary ID

89006

Forms

1. Hematopathology Patient Information (T676) in Special Instructions

2. If not ordering electronically, complete, print, and send a Hematopathology/Cytogenetics Test Request (T726) with the specimen.