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Learn what high RDW-CV levels mean for your health. Explore potential causes, associated conditions, and next steps for diagnosis and treatment. Red cell distribution width (RDW) blood test measures how red blood cells vary in volume and size. Major differences or a high RDW may indicate a medical condition. RDW or red blood cell distribution width is a measure of how equal your red blood cells are in size. It can help your doctor diagnose various blood-related disorders and diseases. In addition, it is also increased in seemingly unrelated disorders and diseases that nevertheless affect blood cell production and lifespan. These include inflammatory, autoimmune, liver, kidney, and heart disease. Keep reading to learn why having a high RDW is bad and how to improve your values. What is Red Blood ... A high red cell distribution width (RDW) indicates heterogeneity in red blood cell size (anisocytosis) and serves as an important diagnostic marker for various conditions including iron deficiency anemia, inflammatory disorders, and cardiovascular diseases, requiring targeted investigation of the underlying cause rather than treatment of the ...
