All tests · Complete Blood Count (CBC) · Reticulocyte Count

Above the range

What causes a high Reticulocyte Count?

Normal range 0.5-2.5 % of RBC (0.005-0.025 fraction SI). Specimen: Whole blood (EDTA). See the full Reticulocyte Count reference page for critical values and nursing considerations.

Above the range

Common causes of a high Reticulocyte Count

  • Recent blood loss or hemolysis
  • Response to iron/B12/folate therapy
  • Erythropoietin therapy

Looking for the other direction? See what causes a low Reticulocyte Count.

What is the normal range for Reticulocyte Count?

The standard teaching reference range for Reticulocyte Count is 0.5-2.5 % of RBC in conventional units, or 0.005-0.025 fraction in SI units. This value is measured in whole blood (edta).

Reticulocyte Count reference range and specimen details
SpecimenWhole blood (EDTA)
Conventional range0.5-2.5 % of RBC
SI range0.005-0.025 fraction
PanelComplete Blood Count (CBC)

Full details, including nursing considerations, on the Reticulocyte Count 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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