What should lymphocyte count be

How the lymphocyte behaves and what it does depends on which type of lymphocyte it is. T, B and NK cells each have different roles in the immune system. The main job of B cells is to help to make antibodies. These are proteins which the immune system produces to fight off invading viruses and bacteria.

There is a final, third type of lymphocyte, known as a natural killer NK cell. NK cells respond quickly to several foreign substances and are specialized in killing cancer cells and virus-infected cells. An absolute blood cell count is a part of the results of a blood test. Treatment of lymphocytopenia depends mainly on the cause. Lymphocytopenia caused by a drug usually begins to resolve within days after a person stops taking the drug. If the lymphocytopenia is the result of AIDS, combination therapy with at least three antiviral drugs of different classes can increase the number of T cells and lengthen survival.

Gamma globulin a substance rich in antibodies may be given to help prevent infections in people with too few B cells who therefore have a deficiency of antibody production. People with a hereditary immunodeficiency disorder may benefit from stem cell transplantation Stem Cell Transplantation Stem cell transplantation is the removal of stem cells undifferentiated cells from a healthy person and their injection into someone who has a serious blood disorder.

See also Overview of If an infection develops, a specific antibiotic, antifungal, antiviral, or antiparasitic drug directed against the infective organism is given. Merck and Co. From developing new therapies that treat and prevent disease to helping people in need, we are committed to improving health and well-being around the world.

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Common Health Topics. Types of lymphocytes. Causes of acute lymphocytopenia Causes of chronic lymphocytopenia. White Blood Cell Disorders. Test your knowledge. What is the medical term for the procedure in which a person donates his or her own blood to be used if needed during or after a surgical procedure? More Content.

People may have no symptoms, or they may have fever and other symptoms of an infection. How do regulatory T cells work? Scand J Immunol. Targeting natural killer cells and natural killer T cells in cancer. Nat Rev Immunol. Khan Academy. Adaptive immunity. Memory B cells. American Society of Hematology.

Blood basics. Nolla H. University of California, Berkeley. Basic Information on Flow Cytometry. What is the normal value of the neutrophil-to-lymphocyte ratio? BMC Res Notes. Mims MP. Lymphocytosis, Lymphocytopenia, Hypergammaglobulinemia, and Hypogammaglobulinemia. Your Privacy Rights. To change or withdraw your consent choices for VerywellHealth. At any time, you can update your settings through the "EU Privacy" link at the bottom of any page.

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