Hematocrit
Blood cell systemHematocrit measures the percentage of blood volume occupied by cellular components, with the largest portion being red blood cells (erythrocytes).
When blood is centrifuged, blood cells settle at the bottom, creating a visible layer that indicates their proportion relative to total blood volume.
Reference range
Female
Source: lab benchmark
Male
Source: lab benchmark
Reference ranges may vary between labs and assays. Always interpret results with your healthcare provider. · LOINC code: 20570-8
Why this matters
Low hematocrit (anemia) can cause fatigue, weakness, shortness of breath, dizziness, and pale skin due to reduced oxygen delivery to tissues. High hematocrit (polycythemia) can thicken blood, increasing the risk of clots, headaches, and blurred vision. Hematocrit levels are influenced by iron, vitamin B12, folate intake, hydration, and chronic conditions. Monitoring helps detect early red blood cell disorders and supports interventions such as dietary adjustments or further medical evaluation.
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