Primary Versus Secondary PV

The major criteria are hemoglobin more than 16.5 grams per deciliter, a hematocrit over 49% and hypercellular bone marrow with pen myelosis or JAC2. For the minor criteria, there's only one, which is a subnormal EPO level. The prognostic factors for worst survival in patients who have polycythemia vera? So if you have increased age, if you have leukocyte ptosis with a white count over 15,000,. If you have a venous thrombosis or if you have an abnormal karyotype.