Above the range
Common causes of a high Red Cell Distribution Width (RDW)
- Early or mixed nutritional deficiency
- Recent transfusion
- Reticulocytosis after bleeding
All tests · Complete Blood Count (CBC) · Red Cell Distribution Width (RDW)
Above the range
What causes a high Red Cell Distribution Width (RDW)?
Normal range 11.5-14.5 %. Specimen: Whole blood (EDTA). See the full Red Cell Distribution Width (RDW) reference page for critical values and nursing considerations.
What is the normal range for Red Cell Distribution Width (RDW)?
The standard teaching reference range for Red Cell Distribution Width (RDW) is 11.5-14.5 %. This value is measured in whole blood (edta).
| Specimen | Whole blood (EDTA) |
|---|---|
| Conventional range | 11.5-14.5 % |
| SI range | 11.5-14.5 % |
| Panel | Complete Blood Count (CBC) |
Full details, including nursing considerations, on the Red Cell Distribution Width (RDW) normal range page. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.
Same panel