Haematocrit test

The share of blood volume made up of red cells.

The Haematocrit test measures the share of blood volume made up of red cells. It is done part of a CBC; a rising value in dengue can signal plasma leakage. Typical adult range: men: 40 to 50 % (source: Mayo); women: 35 to 45 % (source: Mayo). Haematocrit test (LOINC 4544-3). The share of blood volume made up of red cells. Why it is done: Part of a CBC; a rising value in dengue can signal plasma leakage. Preparation: No fasting needed. Typical adult range: men: 40 to 50 % (source: Mayo); women: 35 to 45 % (source: Mayo). Ranges vary by lab, age and sex; use the range on your report. High values may mean: Dehydration, plasma leakage in dengue, high altitude. Low values may mean: Anaemia, blood loss. General information, not a diagnosis. Results must be interpreted by a qualified health worker.

Share-alike: this text keeps its licence. Anything derived from it must credit the source and use the same licence.

Source: AlifZetta Risk Decoder pack (analytes, refranges, critical); LOINC; MedlinePlus Lab Tests (reference)
Licence: AlifZetta text CC BY 4.0; decoder reference data (cited per range); LOINC codes free with attribution (notice included).
As of: 2026-11-07
Curated by AlifZetta SI (axz.si) and shown on DigiNepal with attribution.