Hematocrit shows what portion of your blood is red blood cells, helping assess oxygen-carrying capacity and hydration.
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Clinicians order hematocrit to assess red blood cell levels and oxygen-carrying capacity. It helps evaluate fatigue, dizziness, shortness of breath, or suspected dehydration, and is part of routine checkups and pre-surgery screens. Results can guide next steps, like reviewing hemoglobin, red cell indices, and iron studies. You can test this marker with Aniva across Germany and Finland.
Clinicians order hematocrit to assess red blood cell levels and oxygen-carrying capacity. It helps evaluate fatigue, dizziness, shortness of breath, or suspected dehydration, and is part of routine checkups and pre-surgery screens. Results can guide next steps, like reviewing hemoglobin, red cell indices, and iron studies. You can test this marker with Aniva across Germany and Finland.
High: May reflect dehydration, living at high altitude, smoking, or increased red cell production. Recheck when well hydrated and discuss context with your clinician.
Low: May suggest anemia from blood loss, nutrient gaps (like iron), chronic illness, or pregnancy. Pair with hemoglobin, MCV, and iron studies to clarify causes. Tracking trends over time helps show whether changes are persistent or situational.
Common factors that can skew hematocrit include dehydration or overhydration, recent IV fluids or blood donation, strenuous exercise, smoking, living at high altitude, pregnancy, and acute illness. Some medicines and supplements can shift values, such as diuretics, testosterone or other hormones, and erythropoiesis-stimulating agents.
Special situations: confirm or adjust interpretation if you are pregnant, recently transfused or bled, live at high altitude, or are acutely unwell.
What does my hematocrit result mean? It shows what share of your blood is red cells. Higher or lower levels can reflect hydration, altitude, or red cell changes.
Do I need to fast for this test? No. Eat and drink normally unless your clinician orders other fasting labs.
What can affect the result day to day? Hydration, recent illness, smoking, altitude, pregnancy, and some medicines can shift values. Heavy exercise just before the draw can, too.
How often should I check hematocrit? It’s usually checked with a routine CBC or when symptoms appear. Follow your clinician’s advice for repeat testing.
How long do results take? Most labs report within 1–2 working days.
What should I discuss with my clinician? Share symptoms, recent blood loss or donation, your medicines and supplements, and any altitude or travel changes.
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