Introduction: A complete blood count (CBC), also known as a complete blood cell count, full blood count (FBC), or full blood exam (FBE). CBC is a blood panel that gives information about the cells that circulate in the bloodstream – white blood cells (leukocytes) – red blood cells (erythrocytes) and – platelets (thrombocytes) Importance: CBC is done to monitor overall health, to screen for some diseases, to confirm a diagnosis of some medical conditions, to monitor a medical condition, and to monitor changes in the body caused by medical treatments. This common blood test measures the amount of various types of blood cells in a sample of your blood. Blood cancers may be detected using this test if too many or too few of a type of blood cell or abnormal cells are found. A bone marrow biopsy may help confirm a diagnosis of a blood cancer. Abnormally high or low counts may indicate the presence of many forms of disease, and hence blood counts are ...