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hematology
Red Cell Distribution Width
RDW
Clinical Overview
RDW measures the variation in red blood cell size (anisocytosis). Elevated RDW is an early marker of iron deficiency anemia and helps differentiate anemia types.
Reference RangesWHO/IFCC standards
| Reference Range | Unit | Notes |
|---|---|---|
| 11.5 – 14.5 | % | — |
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Related Topics
anemiaCBCanisocytosisiron deficiency