Table 1.
Classification of clinical PNH*
PMNs indicates polymorphonuclear cells.
*
Based on the recommendations of the International PNH Interest Group.13
†Based on macroscopic hemoglobinuria, serum LDH concentration, and reticulocyte count.
‡Karyotypic abnormalities are uncommon.
§Aplastic anemia or low-risk MDS.
¶Analysis of PMNs is more informative than analysis of RBCs due to selective destruction GPI-AP–deficient RBCs.
