Home
HelpTest Code JAK2B | Beaker: LAB3074 |Beaker: LAB3074 JAK2 V617F Mutation Detection, Blood
Additional Codes
Epic EAP: LAB3074
Epic Description: JAK2 V617F MUTATION DETECTION, BLOOD
Reporting Name
JAK2 V617F Mutation Detection, BUseful For
Aiding in the distinction between a reactive blood cytosis and a chronic myeloproliferative disorder using peripheral blood specimens
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
Whole Blood EDTAShipping Instructions
Specimen must arrive within 7 days of collection.
Specimen Required
Container/Tube:
Preferred: Lavender top (EDTA)
Acceptable: Yellow top (ACD)
Specimen Volume: 4 mL
Collection Instructions:
1. Invert several times to mix blood.
2. Send whole blood specimen in original tube. Do not aliquot.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole Blood EDTA | Ambient (preferred) | 7 days | PURPLE OR PINK TOP/EDTA |
| Refrigerated | 7 days | PURPLE OR PINK TOP/EDTA |
Special Instructions
Reference Values
An interpretive report will be provided.
Day(s) Performed
Monday through Saturday
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 |
|---|---|---|
| JAK2B | JAK2 V617F Mutation Detection, B | 43399-5 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 39722 | JAK2 Result | 53761-3 |
| 29590 | JAK2 V617F Mutation Detection, B | 43399-5 |
Testing Algorithm
For more information see:
-Erythrocytosis Evaluation Testing Algorithm
-Myeloproliferative Neoplasm: A Diagnostic Approach to Peripheral Blood Evaluation
Report Available
2 to 5 daysReject Due To
| Gross hemolysis | Reject |
| Moderately to severely clotted | Reject |
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.Method Name
Quantitative Polymerase Chain Reaction (PCR)
Forms
1. Hematopathology Patient Information (T676)
2. If not ordering electronically, complete, print, and send a Hematopathology/Cytogenetics Test Request (T726) with the specimen.