Reasons For Conducting A WBC Blood Test

Submitted on March 27, 2012

Wbc or white blood cells are an integral part of the immune system that can be found all over the body in the blood as well as in the lymphatic system. White blood cells are responsible for providing immunity and in this task they fight off infections and harmful materials in the blood. There are several different types of white blood cells in the body and these are designed to specifically target particular types of illnesses. Neutrophils, for example, target bacterial infections and fungal infections by attacking harmful bacteria and fungi. Eosinophils are responsible for parasites. Eosinophils also control the body’s allergic reaction to various allergens and irritants. Lymphocytes are the most active type of white blood cell as they contain B cells which release antibodies into the blood stream. T cells in the lymphocytes are responsible for moderating the immune response and for resetting the system after an infection has passed. T cells make sure that an auto immune problem does not occur. Drugs that subdue the immune system such as drugs for auto immune problems will result in the reduction of white blood cells.

Why Is a WBC Test Conducted?

A wbc test is the test that is conducted to check the number or concentration of white blood cells in the blood that is being analyzed. If the wbc blood test results show a high level of wbc then it is inferred that the person is suffering from an illness, an allergy or an inappropriate auto immune response. In wbc test results, leukocytosis is the condition where there is a high level of wbc in blood test.

Normal Range of WBC Cells

Leukopenia is the condition where there is low wbc count. The normal range of wbc cells is between 4000 and 10000 cells per cubic millimeter of blood analyzed. The presence of wbc in urine test is also indicative of a problem that would require immediate attention. Normally, the kidney filters out toxins and passes them into the urinary bladder for expulsion. The kidneys do not allow blood to flow out through the urine. However, if there are blood cells found in the urine, this could point to a problem with the kidney function. It could also be a result of an infection in the kidney, the urinary bladder or the urethra which is causing some white blood cells to be passed into the urine. Inflammation caused by kidney stones and immune related problems are responsible for white blood cells in urine.