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Red Blood Cell Count

RBC Erythrocyte Count
EDTA whole blood ×10¹²/L

About this test

Number of circulating red blood cells per unit volume. Used alongside Hgb and Hct to classify anaemia type.

Reference Ranges

Sex Age Range Notes
Female ≥ 18 yrs 3.8 – 5.2 Adult female
Male ≥ 18 yrs 4.5 – 5.9 Adult male

Clinical Interpretation

Low / Decreased
Decreased in anaemia of any cause; also haemodilution.
High / Increased
Polycythaemia — primary (PV), secondary (hypoxia, EPO excess), dehydration.

Related Tests

Haemoglobin Haematocrit
Specimen
EDTA whole blood
Reporting Unit
×10¹²/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.