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  1. Medically Reviewed by Jennifer Robinson, MD on August 15, 2022. Written by Sharon Liao. What’s in a Pathology Report? 4 min read. A pathology report is a medical document that gives information...

    • Overview
    • Blood Color
    • Lymphocytes Defense
    • Testing WBCs
    • Normal Ranges
    • Low Counts

    This article is about the role of white blood cells, specifically lymphocytes, in our body and how they defend us from infections and diseases. It also explains different types of lymphocytes such as B cells, T cells and natural killer cells along with their functions. The article provides information on normal ranges of lymphocyte counts for adult...

    The color of your blood comes from red blood cells that carry oxygen through your body. White blood cells defend the body from infection, with lymphocytes being an important part of the immune system.

    For every 600 to 700 red blood cells, there is one white blood cell. Lymphocytes are formed in bone marrow and act as the body's army against invading organisms or viruses. There are two types of lymphocytes - B cells make antibodies while T cells destroy virus-taken over or cancerous cells. Natural killer cells can destroy tumor without activation...

    A complete blood count measures different components of your blood including white and red blood cells, platelets, hemoglobin and hematocrit ratio; flow cytometry is a more detailed test that looks at many types of blood cell levels including different lymphocyte counts; both tests require a sample taken by healthcare professional sent to lab for a...

    Normal ranges vary among labs but depend on age with normal adult range between 1k-4.8k per microliter while children have 3k-9.5k per microliter; high counts mean fighting an infection but sometimes due to serious conditions like hepatitis, HIV/AIDS etc., diagnosis requires doctor consultation after medical history review and physical exam along w...

    Less than 1k per microliter considered low count for adults while less than 3k per microliter considered low count for children; underlying causes include autoimmune disorders like lupus, infectious diseases like tuberculosis/AIDS/viral hepatitis etc., radiation therapy or steroid therapy ; diagnosis involves doctor consultation after medical histo...

  2. 2023年9月19日 · Antibodies are proteins that your immune cells make to fight off bacteria, viruses, and other harmful invaders. The immunoglobulin test can show whether there's a problem with your immune system....

  3. 2023年12月20日 · Research shows that a vitamin A supplement can help people with age-related macular degeneration, a condition that causes older people to lose their vision. Oral vitamin A is also used as a...

  4. 2024年4月5日 · An enlarged prostate, or benign prostatic hyperplasia (BPH), a common, noncancerous condition that typically develops after age 50. Why is the PSA test done? Doctors generally use a PSA test to...

  5. 2024年1月23日 · They can also answer any questions about medical terms or jargon on the drug packages. View Sources. Use WebMD’s Drug Interaction Checker tool to find and identify potentially harmful and unsafe...

  6. 2023年6月24日 · Use WebMD’s Pill Identifier to find and identify any over-the-counter or prescription drug, pill, or medication by color, shape, or imprint and easily compare pictures of multiple drugs.