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Haematocrit

Hct PCV Packed Cell Volume
EDTA whole blood fraction (or %)

About this test

Proportion of blood volume occupied by red blood cells. Closely mirrors haemoglobin and is useful in assessing fluid status.

Reference Ranges

Sex Age Range Notes
Female ≥ 18 yrs 0.36 – 0.46 Adult female
Male ≥ 18 yrs 0.41 – 0.53 Adult male (×100 for %)

Clinical Interpretation

Low / Decreased
Decreased in anaemia, fluid overload, haemodilution.
High / Increased
Increased in polycythaemia, dehydration.

Related Tests

Haemoglobin
Specimen
EDTA whole blood
Reporting Unit
fraction (or %)
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.