What is this test?
This laboratory test is performed on blood sample to evaluate the percentage of blood made up of red blood cells (erythrocytes). Blood is made up of four portions, i.e.
- Red blood cells
- White blood cells
- Platelets
- Plasma.
Why is this test performed?
This test is performed:
- To diagnose anemia or polycythemia
- To assess the hydration levels
- To diagnose leukemia
- To monitor the efficacy of treatment.
- What will affect my test results?
Following conditions will affect your test results:
- A recent blood transfusion
- Pregnancy
- High altitudes.
- Which foods help in increasing hematocrit?
Following foods have been found helpful in increasing hematocrit levels:
- Red meat
- Fish
- Shrimps
- Oysters
- Dry fruits
- Leafy vegetables.
- What are other names of this test?
Hematocrit lab test is also called packed cell volume or erythrocyte volume fraction.
- What is polycythemia Vera?
Polycythemia Vera is a blood disorder characterized by excessive production of red blood cells in the bone marrow. It makes the blood thick and difficult to flow.
- How to prepare for this test?
Inform your doctor about your use of all the prescribed and non-prescribed medicines. No special preparations are required for this test.
Normal range:
Males: 38.8 - 50%
Females: 34.9 – 44.5%
- Interpretation of test results:
Causes of low hematocrit:
- Anemia
- Nutritional deficiencies
- Bone marrow disease
- Kidney disease
- Hemorrhage
Causes of high hematocrit:
- Polycythemia
- Dehydration
- Lung disease
- Congenital heart disease.