Sample type: Blood
Preparation: You do not need to do anything special to prepare for the sample collection.

The CBC measures multiple components of your blood to help identify bleeding disorders or infections and abnormal levels of specific blood components. For instance, a CBC measures the level of red blood cells, which transport oxygen to body cells and tissues. A low level of RBCs can be a sign of anemia. High levels of abnormal white blood cells that crowd out red blood cells and platelets can be a sign of leukemia. This test measures various components and abnormalities of your blood, including: RBC count, hemoglobin, hematocrit, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC) and red cell distribution width (RDW), WBC count, WBC Differential (neutrophils, lymphocytes, monocytes, eosinophils, and basophils), platelet count, and mean platelet volume (MPV).