It is also called as complete blood picture/complete blood count(CBP/CBC) The FBC assesses several different parameters and can provide a great deal of information. The red cell variables will determine whether or not the patient is anaemic. If anaemia is present the MCV is likely to provide clues as to the cause of the anaemia. The white cells are often raised in infection neutrophilia in bacterial infections and lymphocytosis in viral (but not always so). Platelets (size or number) may be abnormal either as a direct effect of underlying blood disease.