In emergency situations, CBC results can be reported in an hour. The report will include the number of red blood cells and white blood cells. Red blood cells are important because they carry oxygen throughout your body. A low red blood cell count could mean that you have anemia. White blood cells are warriors that fight infections.
A high white blood cell count could mean that you have an infection. Blood count is also affected by altitude. The higher up you are, the more oxygen you need red blood cells.
Following the CBC, your doctor will evaluate the results. If your blood count is normal, you will not need to do anything. Your doctor will explain your results and advise if any follow-up is needed.
Having CBC lab work done poses very little risk to your health. However, anytime the skin is broken even by a sterilized needle , there is always a slight risk of infection. You should also keep in mind that some blood may pool under the skin, causing a bruise after the test. If you are scared of needles, you may experience general anxiety about the test.
The test is done with a blood sample. A needle is used to draw blood from a vein in your arm or hand. Having a blood test with a needle carries some risks. These include bleeding, infection, bruising, and feeling lightheaded.
When the needle pricks your arm or hand, you may feel a slight sting or pain. Afterward, the site may be sore. Certain medicines might affect your results, so talk with your healthcare provider about the medicines you are taking.
You don't need to prepare for this test. Be sure your healthcare provider knows about all medicines, herbs, vitamins, and supplements you are taking. This includes medicines that don't need a prescription and any illicit drugs you may use. Search Encyclopedia. Complete Blood Count with Differential Does this test have other names?
The test gets a lot of information from your blood sample: The number and types of white blood cells WBCs. Why do I need this test? These may be symptoms of anemia. What other tests might I have along with this test? This content does not have an English version. This content does not have an Arabic version. Overview A complete blood count CBC is a blood test used to evaluate your overall health and detect a wide range of disorders, including anemia, infection and leukemia.
A complete blood count test measures several components and features of your blood, including: Red blood cells, which carry oxygen White blood cells, which fight infection Hemoglobin, the oxygen-carrying protein in red blood cells Hematocrit, the proportion of red blood cells to the fluid component, or plasma, in your blood Platelets, which help with blood clotting.
Request an Appointment at Mayo Clinic. Share on: Facebook Twitter. Show references Complete blood count. Lab Tests Online. Accessed Aug. CBC with differential, blood. Mayo Medical Laboratories. This is done by pricking the skin with a needle. Preparing children before a test or procedure can help lower their anxiety, increase their cooperation and develop their coping skills.
This includes explaining to children what will happen during the test, such as what they will see, feel and hear. Parents or caregivers can help reassure and prepare children by giving them brief but accurate information about what will happen, such as: A big rubber band that feels like a balloon will be placed around your arm.
This will feel tight, like someone is squeezing your arm. When your skin is cleaned it will feel cold. When the needle is placed in your arm, you will feel a prick or pinch. It may sting or hurt a little, or it may not hurt at all. Once the needle is in your arm, you will see the blood come out into a tube.
Children may worry about not having enough blood after some has been taken from their arm. You can reassure them that bodies make new blood all the time and that their body will not run out of blood.
Parents or caregivers can help distract children during blood tests to help make it easier for them. Toddlers 1 to 2 years might like to watch bubbles or toys that move or make sounds, such as magic wands, light-up toys or pinwheels. They may want to hold their favourite toy. Preschoolers 3 to 5 years may want to hold a favourite toy or watch toys that light up and make sounds.
Teenagers 13 to 18 years can try deep breathing or imagining their favourite place. They also might want to hear a joke or story. Preparing a child for a blood test depends on the age and experience of the child.
Find out more about helping your child cope with tests and treatments. Home Treatments Tests and procedures Complete blood count cbc. Complete blood count CBC. Why a CBC is done. How a CBC is done.
A CBC is usually done in a community lab or hospital.
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