Red cell distribution width (RDW) and coefficient of variation (CV) are calculated metrics derived from complete blood count (CBC) results. RDW represents the variation in red blood cell size, while CV quantifies the variability in other cell types, such as platelets. These values, often automatically calculated by hematology analyzers, can offer valuable insights into a patient’s health status, going beyond the basic CBC parameters.
Analysis of erythrocyte size variation and other cellular indices provides crucial diagnostic information for various conditions, including anemia, nutritional deficiencies, and certain types of blood disorders. Historically, manual microscopic examination of blood smears was required to assess cell morphology. Modern automated analyzers now provide these measurements swiftly and accurately, improving diagnostic efficiency and patient care. This readily available data allows for earlier detection and better monitoring of disease progression.