Red Cell Distribution Width–Coefficient of Variation (RDW-CV)

How to Cite This Chapter: Don-Wauchope A, Chetty VT, Ivica J, Kavsak P, Khan WI, Lafreniere M, Nouri K, Solnica B. Red Cell Distribution Width–Coefficient of Variation (RDW-CV). McMaster Textbook of Internal Medicine. Kraków: Medycyna Praktyczna. https://empendium.com/mcmtextbook/chapter/B31.1269.3.7.27.8. Accessed December 05, 2025.
Last Reviewed: May 9, 2022
Last Updated: May 9, 2022
Chapter Information

For a brief introduction and guide to abbreviations, see Laboratory Tests: General Remarks.

Analyte [material]

Red cell distribution width–coefficient of variation (RDW-CV)

Reference range, target level, or decision threshold

11.5%-14.5%

Interpretation of results

↑ Deficiency anemias, after PRBC transfusion

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