JAK2V617F + CALR + MPL NGS Panel
Use
Molecular testing of blood or bone marrow is useful in the evaluation of suspected myeloproliferative neoplasms (MPN). Mutations in the JAK2, MPL and CALR genes are present in virtually all MPNs and their presence help distinguish benign reactive processes from clonal neoplasms. These mutations are generally considered mutually exclusive, although concurrent clones have been reported in rare patients.
Special Instructions
Ensure the specimen arrives at the laboratory within 48 hours of collection. Indicate date and time of collection on the test request form. Specimens should be submitted at room temperature and shipped accordingly. If storage prior to shipment is necessary, maintain at 2°C to 8°C.
Limitations
The assay has a sensitivity of approximately 1% variant allele frequency (VAF) for JAK2V617F mutations and 2.5% VAF for CALR and MPL mutations. Deletions in CALR up to 70 bp and insertions up to 12 bp have been validated. The test's performance characteristics were determined by Labcorp; it has not been cleared or approved by the FDA.
Methodology
NGS (Amplicon-based)
Biomarkers
LOINC Codes
- 66746-9
- 43399-5
- 53761-3
- 77174-1
- 48004-6
- 48005-3
- 75033-1
- 62364-5
- 49549-9
- 75608-0
- 72486-4
Result Turnaround Time
7 days
Related Documents
For more information, please review the documents below
Specimen
Whole Blood
Volume
3 to 5 mL
Minimum Volume
3 mL
Container
Lavender-top (EDTA) tube, green-top (sodium heparin) tube, yellow-top (ACD) tube, tan-top (K2-EDTA) tube or pink-top (K2-EDTA) tube
Collection Instructions
Submit at room temperature. Specimens should arrive in the laboratory within 48 hours of collection. Indicate date and time of collection on test request form.
Storage Instructions
Ship at room temperature. If specimen is to be stored prior to shipment, store at 2°C to 8°C.
Causes for Rejection
Specimen does not meet all of the criteria for sample type, container, minimum volume, collection and storage; frozen whole blood or marrow; leaking tube; clotted blood or marrow; grossly hemolyzed or otherwise visibly degraded; contamination by another specimen; specimen containing foreign material
Other tests from different labs that may be relevant