The immature platelet fraction: creating neonatal reference intervals and using these to categorize neonatal thrombocytopenias

摘要

OBJECTIVE: The immature platelet fraction (IPF) is a laboratory measurement analogous to the reticulocyte count, but reflecting the thrombopoietic state. Similar to a reticulocyte count, it can be expressed as a percent (IPF% = percent of platelets that are immature) or as an absolute number per mu l blood; the immature platelet count (IPC=IPF% x platelets per mu l of blood).