BCR/ABL1 Tyrosine Kinase Inhibitor Resistance
T315I
CAUTION: This test is not same test as Muscle-Specific Kinase (MuSK) Antibody, IgG.
Test Codes
EPIC: LAB1231490, Beaker: XBCRTKR, MAYO: BAKDM
Department
Send Outs
Instructions
NOTE: BCR/ABL fusion type must be provided for testing to be performed (p210, p190, p205, p230).
Specimen Collection Criteria
Collect: Whole blood or bone marrow in Lavender-top EDTA tubes.
Physician Office/Draw Specimen Preparation
Do not centrifuge or freeze. Maintain specimens in original tube and refrigerate (2-8°C or 36-46°F).
Preparation for Courier Transport
Transport: 8.0 mL whole blood or 4.0 mL bone marrow, refrigerated (2-8°C or 36-46°F). (minimum whole blood 4.0 mL; minimum bone marrow 2.0 mL)
Rejection Criteria
- Clotted.
- Specimens not collected and processed as indicated.
In-Lab Processing
Do not centrifuge or freeze. Maintain specimens in original tube and refrigerate (2-8°C or 36-46°F).
Transport: 8.0 mL whole blood or 4.0 mL bone marrow, refrigerated (2-8°C or 36-46°F). (minimum whole blood 4.0 mL; minimum bone marrow 2.0 mL)
Storage
Specimen Stability for Testing:
Room Temperature (20-26°C or 68-78.8°F): 72 hours
Refrigerated (2-8°C or 36-46°F): 5 days
Frozen (-20°C/-4°F or below): unacceptable
Specimen Storage in Department Prior to Disposal:
Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.
Laboratory
Sent to Mayo Clinic Laboratories in Rochester, MN.
Performed
Monday – Friday.
Results available in 6-8 days.
Reference Range
By report.
Test Methodology
Reverse Transcription – Polymerase Chain Reaction (RT-PCR) and DNA Sequencing.
Interpretation
By report.
Clinical Utility
This is the preferred initial test to identify the presence of acquired BCR/ABL1 mutations associated with TKI-resistance.
CPT Codes
81170
Contacts
Send Outs Laboratory – RO
248-551-9045
Name: Send Outs Laboratory – RO
Location:
Phone: 248-551-9045
Last Updated
10/8/2024
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