National Heart, Lung, and Blood Institute. Tefferi A. Diagnostic approach to the patient with polycythemia. Hoffman R, et al. The polycythemias. In: Hematology: Basic Principles and Practice.
Philadelphia, Pa. CBC with differential, blood. Mayo Medical Laboratories. Related Iron deficiency anemia. Hematocrit test About. If test results show your hematocrit levels are too low, it may indicate: Anemia Nutritional deficiency of iron, vitamin B, or folate Kidney disease A bone marrow disease Certain cancers such as leukemia , lymphoma , or multiple myeloma If test results show your hematocrit levels are too high, it may indicate: Dehydration, the most common cause of high hematocrit levels.
Drinking more fluids will usually bring your levels back to normal. Lung disease Congenital heart disease Polycythemia vera If your results are not in the normal range, it doesn't necessarily mean that you have a medical condition requiring treatment. Is there anything else I need to know about a hematocrit test? References American Society of Hematology [Internet]. Washington D. Blood Basics; [cited Feb 20]; [about 2 screens]. Hematocrit; p. Mayo Clinic [Internet].
Mayo Foundation for Medical Education and Research; c— Hematocrit Test: Overview; May 26 [cited Feb 20]; [about 2 screens]. Hematocrit: The Test; [updated Oct 29; cited Feb 20]; [about 4 screens]. There are separate requirements for the red cell-only donation known as Power Red. Recent studies show that there is a need for blood transfusions every 2 seconds. Blood donations can help trauma patients, cancer patients, people with chronic illnesses, and more.
What Does Hematocrit Mean? What Is a Hematocrit Level? What Is Normal Hematocrit? What Is the Difference Between Hematocrit and Hemoglobin Hematocrit and hemoglobin measurements are both blood tests but they are not testing the same thing. Hematocrit tests can tell doctors if someone is anemic, which is one of the most common reasons for ordering the test.
Symptoms of anemia include tiredness, grumpiness, heavy menstrual periods, cold hands and feet, and poor concentration. Your doctor may ask you to get a hematocrit test done if you have any of those symptoms. Hematocrit tests, which are sometimes called packed cell volume tests PCV , can also help tell doctors whether someone has other nutritional deficiencies or health problems such as leukemia, kidney disease, or arthritis.
Hematocrit tests are important because they measure how many red blood cells someone has. Too many or too few red blood cells can indicate certain nutritional deficiencies or diseases that doctors will know how to identify. During a hematocrit test, you can expect to have a sample of blood taken by a phlebotomist or another healthcare professional who can draw blood.
Getting your blood drawn can be uncomfortable, but most people only feel a light prick when the needle inserts the vein. If you need to have a hematocrit test done and know that you might get lightheaded, you can always ask to lie down while your blood sample is being taken. A normal hematocrit level for women is For men, a normal range is The normal numbers vary a little from lab to lab.
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