CBC / Hematology
Also known as: WBC count, white cell count, white blood cell count
Contact your clinician if you have a high fever, severe chills, persistent cough, or a wound that is red, swollen, or won't heal, especially if you have a known abnormal WBC count. Seek urgent care for sudden, severe symptoms or signs of a serious infection.
This lab test counts all the white blood cells in your blood. White blood cells are also called leukocytes. They are a very important part of your body's defense system. They help your body fight off sickness and other health problems.
Your doctor orders this test for a few reasons. It helps them see if you have an infection. It can also show if you have swelling or irritation in your body. Sometimes, it helps find out if your immune system is attacking itself. This test can also check on problems with your white blood cells. It helps your doctor see if your treatments are working too.
White blood cell count ranges can vary depending on the laboratory, your age, and other factors. Your doctor will interpret your results based on your individual health and medical history.
Clinical Reference
639900500985025Included in CBC panel
Educational purposes only — This information is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your lab results with your healthcare provider.