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White blood cells are responsible for detecting and destroying disease-causing foreign substances in the blood throughout the body. A blood count test shows the status and number of white blood cells in the body, thereby detecting abnormalities in white blood cells.1. What are white blood cells?
White blood cells are an integral part of every person's blood. With the function of protecting the body by detecting and destroying disease-causing foreign objects in the blood throughout the body. Because of this, there is more than one type of white blood cell in a person's blood. The lifespan of white blood cells will range from 1 week to several months depending on their function.There are white blood cells that do phagocytosis, which means that they eat foreign objects. Other white blood cells have the task of remembering so that the next time a foreign object enters, it will be detected quickly, so that another type of white blood cell can destroy it. . There are also white blood cells that secrete antibodies that circulate in the blood to protect the body from disease. White blood cells are not only in the blood, but a large number of white blood cells are also produced in the bone marrow, residing in the body's tissues to perform protective tasks.
It is possible to classify white blood cells into types according to their functions and tasks in the blood. Specifically, there are T-lymphocytes (T-lymphocytes) that control the immune system, which can kill viruses and cancer cells. B-lymphocytes (B-lymphocytes) produce antibodies. Neutrophils fight inflammation, kill bacteria, and treat tissue if damaged. Large monocytes combine with white blood cells to fight infection and are needed for antibody production.
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2. What is the number of white blood cells in the body?
About the number of white blood cells in the blood, also known as the WBC index in the total blood test, normal blood analysis is from 6-9 k / μL (6 thousand to 9 thousand in 1 microliter of blood). During the total blood analysis, if the WBC index is 40 - 10 Giga/L, then you most likely have an infection, blood malignancy, leukemia diseases such as acute myeloid leukemia, leukaemia. acute lymphocytic leukemia, chronic myeloid leukemia, chronic lymphocytic leukemia, leukemia, or anemia, infection ... In these cases, you will be ordered by your doctor to perform other tests. for accurate and specific diagnosis.
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3. Meaning of the number of white blood cells in the blood
The number of white blood cells increases due to bacterial infections, parasites, infections of organs in the body such as pneumonia, liver abscess. In some cases, you may have had cancers of the hematopoietic system such as acute or chronic leukemia. Elevated leukemia is caused by an excessively high white blood cell count. At this time, the patient will have symptoms ranging from mild to severe such as feeling tired all the time, unexplained weight loss, irritability, and stress. People with a high white blood cell count often have a low-grade fever, which is accompanied by an infection in the body. In addition, the patient also has weak breathing, muscle weakness, difficulty in wound healing, bruising even though there is no impact, and nosebleeds of unknown cause.For leukopenia is a condition in which the average white blood cell count is very low. In addition, neutrophils are also a common form of the disease, white cells are made from the bone marrow, travel to the blood, infected areas. This type secretes substances that kill microorganisms that enter the body. A person with a white blood cell count below 1500 is called leukopenia. Patients with tuberculosis, infectious diseases, dengue fever, or infections with certain viruses such as Epstein-Barr, cytomegalovirus, hepatitis and HIV virus often have a reduced white blood cell count.
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