Hematologic Conditions: Leukopenia - PubMed
pubmed.ncbi.nlm.nih.gov › 31613563Leukopenia is a common finding in the outpatient setting. It typically occurs because of a significant reduction in neutrophils, which comprise 50% to 70% of circulating leukocytes. Neutropenia is defined as an absolute neutrophil count (ANC) of less than 1,500/mcL. Neutropenia is classified by whether it is transient or chronic.