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HelpTest Code JAK2V JAK2 V617F Mutation Detection, Varies
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Reporting Name
JAK2 V617F Mutation Detection, VSpecimen Type
VariesSpecimen Required
Specimen Type: Extracted DNA from blood or bone marrow
Container/Tube: 1.5- to 2-mL tube with indication of volume and concentration of the DNA
Specimen Volume: Entire specimen
Collection Instructions: Label specimen as extracted DNA from blood or bone marrow and indicate volume and concentration of the DNA.
Specimen Stability Information: Refrigerated/Ambient
Reject Due To
| Bone marrow biopsies Slides Paraffin shavings Frozen tissues and paraffin-embedded tissues Paraffin-embedded bone marrow aspirates Moderately to severely clotted |
Reject |
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Varies | Varies | ||
Specimen Minimum Volume
50 microliter at a concentration of 20 ng/microliter
Special Instructions
Day(s) Performed
Monday through Saturday
Specimen Retention Time
3 monthsReport Available
2 to 5 daysReference Values
An interpretive report will be provided.
Useful For
Aiding in the distinction between a reactive blood cytosis and a chronic myeloproliferative disorder using extracted DNA specimens
CPT Code Information
81270-JAK2 (Janus kinase 2) (eg, myeloproliferative disorder) gene analysis, p.Val617Phe (V617F) variant
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| JAK2V | JAK2 V617F Mutation Detection, V | 43399-5 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 39724 | JAK2 Result | 53761-3 |
| 31160 | JAK2 V617F Mutation Detection, V | 43399-5 |
Supportive Data
Analytical sensitivity is determined at 0.06% (by dilution of a JAK2 V617F-positive cell line DNA into a negative cell line DNA).
Forms
1. Hematopathology Patient Information (T676)
2. If not ordering electronically, complete, print, and send a Hematopathology/Cytogenetics Test Request (T726) with the specimen.