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Reticulocyte Count

Retic Count Reticulocyte Percentage
EDTA whole blood % (or ×10⁹/L)

About this test

Immature red blood cells recently released from bone marrow. Reflects erythropoietic activity.

Reference Ranges

Sex Age Range Notes
All ≥ 18 yrs 0.5 – 2.5 Adult % of RBCs; absolute: 25–100 ×10⁹/L

Clinical Interpretation

Low / Decreased
Low reticulocytes in anaemia — hypoproliferative (iron/B12/folate deficiency, aplasia, marrow failure).
High / Increased
High reticulocytes in anaemia — haemolytic anaemia, acute blood loss, treatment response.

Related Tests

Haemoglobin
Specimen
EDTA whole blood
Reporting Unit
% (or ×10⁹/L)
Category
🩸 Hematology

⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.