White Blood Cells or WBCs are the body’s defense against infection. They are lesser in number than RBCs but more significant in size. When you contract certain diseases, the number of WBCs in the blood increases rapidly. They then attack the cause of infection, whichever microorganism it may be, and try to destroy it. The WBC count is thus used to check or confirm suspicions regarding some infections. Any undetected medical condition such as autoimmune diseases and immune deficiencies are noticeable. You can also monitor the body’s response to cancer treatment. In most healthy adults, the Leukocyte Count falls within the range of 4,500 – 11,000 cells/mcL.
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