What is the normal value of wbc and what is it used for?

WBC clinically refers to white blood cells, which is also the abbreviation of leukocytes, a type of immune cell in the human body. The level of white blood cells is closely related to human health. Of course, the normal value of white blood cells will also change with age. Generally, when it is higher or lower than the normal value, it will definitely have an impact on health, so you should pay attention to regular physical examinations. So what is the normal value of WBC in clinical practice? What's the use?

1. The total white blood cell count of a normal newborn is (9-30) x109/L, with an average of 20 x109/L. As age increases, the normal value will gradually decrease, such as (6-15) x109/L for infants aged 6 months to 6 years, with an average of 10 x109/L; and (4.5-13.5) x109/L for infants aged 7-12 years, with an average of 8 x109/L.

2. White blood cells are abbreviated as WBC, formerly known as white blood cells. A type of cell in the blood. White blood cells are also often called immune cells. Colorless cells found in human and animal blood and tissues. It has a nucleus and can undergo deformation movement. Leukocytes generally have active mobility and can migrate from intravascular to extravascular, or from extravascular tissue to intravascular. Therefore, in addition to existing in blood and lymph, white blood cells are also widely present in tissues other than blood vessels and lymphatic vessels.

3. White blood cell counts below normal values ​​are likely to be leukocytopenia. Common causes of low white blood cell counts include viral infection, typhoid fever, etc., and some are caused by drugs. If the granulocytopenia is caused by drugs, the drugs should be stopped immediately and appropriate anti-leukocytogenic drugs should be used, such as colony stimulating factor (CsF), lithium carbonate, madder diepoxide, polyantigen A, etc. Stop exposure to radiation or other chemical toxins. Caused by hypersplenism, prone to recurrent and severe infection, splenectomy may be performed.