All tests · Complete Blood Count (CBC) · White Blood Cell Count (WBC)
Below the range
Normal range 4.5-11 10³/µL (4.5-11 10⁹/L SI). Specimen: Whole blood (EDTA). See the full White Blood Cell Count (WBC) reference page for critical values and nursing considerations.
Below the range
Looking for the other direction? See what causes a high White Blood Cell Count (WBC).
The standard teaching reference range for White Blood Cell Count (WBC) is 4.5-11 10³/µL in conventional units, or 4.5-11 10⁹/L in SI units. This value is measured in whole blood (edta).
| Specimen | Whole blood (EDTA) |
|---|---|
| Conventional range | 4.5-11 10³/µL |
| SI range | 4.5-11 10⁹/L |
| Critical value | < 2.0 or > 30.0 × 10⁹/L (severe neutropenia or marked leukocytosis) |
| Panel | Complete Blood Count (CBC) |
Full details, including nursing considerations, on the White Blood Cell Count (WBC) normal range page. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.
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