If your HCT is low, it means you may have: This can happen when you are dehydrated or in shock. Your HCT may also be high if your plasma or blood volume is too low. If your HCT is high, it may mean your body is making too many red blood cells. Normal values are:ģ0% to 44% for children, depending on age Normal hematocrit values are different for men, women, and children. Ask your healthcare provider what your test results mean for you. Your test results may not mean you have a problem. Test results may vary depending on your age, gender, health history, the method used for the test, and other things. Your healthcare provider may also order a test that measures your hemoglobin to find out how much oxygen your red blood cells are carrying. Your healthcare provider may also order a complete blood count, or CBC, which is a blood test that counts all the different types of cells in your blood. What other tests might I have along with this test? Too few red blood cells is called anemia.Īnemia can be caused by blood loss, your body making fewer red blood cells, or increased destruction of red blood cells. Too many red blood cells is called polycythemia. You may also need your hematocrit checked before having surgery or if your healthcare provider suspects you have a red blood cell disorder. You may need this test if it is part of routine blood testing. To measure your HCT, your blood sample is spun at a high speed to separate the red blood cells. Your hematocrit (HCT) shows whether you have a normal amount of red blood cells, too many, or too few. In this test, your red blood cells are separated from the rest of your blood so they can be measured. Normal blood contains white blood cells, red blood cells, platelets, and the fluid portion called plasma. This test measures how much of your blood is made up of red blood cells. HCT, packed cell volume, PCV What is this test? Hematocrit Does this test have other names?
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