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Hematocrit%
Hematocrit is the share of your blood volume made up of red blood cells. It moves together with hemoglobin.
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What Hematocrit measures
Hematocrit is the share of your blood volume made up of red blood cells. It moves together with hemoglobin.
If your Hematocrit is low
Hematocrit below the range is part of the picture of anemia and follows hemoglobin.
Commonly associated with
- Low iron
- Blood loss
- B12 or folate levels
- Chronic conditions
If your Hematocrit is high
Hematocrit above the range means red cells make up a larger share of blood volume, most often because of dehydration or altitude; it tracks with hemoglobin.
Commonly associated with
- Dehydration
- Altitude
- Smoking
- Increased red cell production
Typical reference range
| Group | Typical range |
|---|---|
| Women | 34 – 46.6 % |
| Men | 37.5 – 51 % |
Typical adult values used by many US labs. Your own report prints the range your lab validated for its method, and that range is the one that counts. Labwise always uses the printed range first.
If it is within range
Your hematocrit is within the range printed by your lab.
Also listed as
HCT
Related tests
This page is general information about what a laboratory test measures and what results outside a reference range are commonly associated with. It is not medical advice, does not diagnose any condition and does not replace your clinician. Discuss your results with your healthcare provider.