What it is
Hematocrit is the amount of whole blood that is made up of red blood cells.[1]
Why it matters
It helps frame oxygen-carrying capacity together with hemoglobin and red blood cell count.[1]
Root causes of abnormal values
- Physical core: Hematocrit changes when the red-cell volume share of whole blood changes. It rises if red-cell volume takes up more of the blood sample, and falls if red-cell volume takes up less.[1]
- Ratio layer: Hematocrit is a proportion, so it is shaped by both red-cell mass and the rest of the blood volume. That is why it belongs with hemoglobin, RBC count, MCV, hydration/volume context, and anemia pattern rather than standing alone.[1,2]
- Boundary: BioConst can explain hematocrit as the red-cell share of blood volume, but it does not identify the cause of a high or low personal value.[1]
What it affects
- Low or high hematocrit can reflect many contexts and is not interpreted alone.[1]
Interpretation traps
- BioConst does not interpret personal hematocrit values.[1]