A complete blood count (CBC) test is a group of tests that provides information about blood cells like Red Blood Cells (RBC), White Blood Cells (WBC) and platelets. It is routinely performed to provide an overview of a patients general health status. It is the Screening tool use to confirm a hematologic disorder, to establish or rule out a diagnosis, to detect an unsuspected hematologic disorder, or to monitor effects of radiation or chemotherapy.A morphology evaluation is also performed when abnormal results are identified upon microscopic examination