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JAK2 Mutation

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Also known as: Janus Kinase 2
Formal name: JAK2 V617F; JAK2 Exon 12 Mutation

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At a Glance

Why Get Tested?

To help diagnose bone marrow disorders known as myeloproliferative neoplasms (MPNs) in which the bone marrow produces too many of one or more types of blood cells

When to Get Tested?

When your healthcare practitioner suspects that you may have a bone marrow disorder, including polycythemia vera, essential thrombocythemia, or primary myelofibrosis

Sample Required?

A blood sample drawn from a vein in your arm or sometimes a sample of bone marrow

Test Preparation Needed?