what do cbc values mean
Guide. A complete blood count (CBC) gives important information about the kinds and numbers of cells in the blood, especially red blood cells, white blood cells, and platelets. A CBC helps your doctor check any symptoms, such as weakness, fatigue, or bruising, you may have.A CBC also helps him or her diagnose conditions, such as anemia, infection, and many other disorders. A CBC test usually includes: 1  White blood cell (WBC, leukocyte) count. Too many or too few of the different types of white blood cells can help find an infection, an allergic or toxic reaction to medicines or chemicals, and many conditions, such as leukemia. 2  Red blood cell (RBC) count. 3  Red blood cells carry oxygen from the lungs to the rest of the body.