What is hematocrit?
The hematocrit value means the percentage of red blood cells in the total blood volume. Our blood has white blood cells, red blood cells and platelets in liquid plasma that comprise 45% of the total blood volume.
Also Read: Erythropoietin Test
What is the function of RBCs?
Red blood cells are important to our health as they transport oxygen to various organs of the body which is essential for their normal functioning.
What is the normal Hematocrit value?
Normal value varies with age and race. Adults’ normal value in men is 41-50% while for women it ranges from 36%-44%, slightly lower than males.
Why would you need to get a hematocrit test done?
If a person shows signs of anemia, polycythemia, erythrocytosis, dehydration or dietary deficiencies
Also, if the person is not responding well to the treatment or showing any of the above-mentioned symptoms, this test is performed which is usually included in the CBC test.
What are the symptoms indicating abnormal hematocrit level?
- Fatigue
- Shortness of breath
- Dizziness
- Headache
- Sweating
- Nosebleed
What does a lower hematocrit value indicate?
A level below the normal range means that the person has very few red blood cells and might be suffering from the following diseases:
- Hemolytic anemia
- Kidney failure
- Leukemia
- Sickle cell anemia
- Bone marrow diseases
- Deficiencies like iron, folate or vitamin B-12
- Internal bleeding
- CID (Chronic Inflammatory disease)
What does a higher hematocrit value indicate?
A level above the normal range means that the person has too many red blood cells and might be suffering from the following diseases:
- Kidney tumor
- Dehydration
- Congenital heart disease
- Polycythemia Vera
What is to be considered before getting the test done?
Before the test let the doctor know if you are pregnant or if a recent blood transfusion is done as these affect the results. People living at high altitudes also have higher levels.
What are the other tests considered along with hematocrit value?
A complete blood test is ordered by the doctor which includes a hematocrit test, hemoglobin and reticulocyte count which help to gain a complete understanding of RBCs. All the tests in CBC are considered to make a final diagnosis.
What is the risk associated with the test?
No major risk or side effect is associated but there might be slight throbbing at the site where blood is drawn. So, consult a doctor if there is swelling or bleeding at the puncture site that persists after a few minutes.
