Polycythemia Vera (PV)
At a Glance Most patients being evaluated for polycythemia vera (PV) are incidentally discovered to have an increased hematocrit (>48% in women and >52% in men, respectively) and/or hemoglobin (>15 g/dL in women and >17 g/dL in men, respectively). Sustained expansion of the red cell mass, as seen in PV and other erythrocytoses, typically takes…
