'It also helps us to determine the likelihood of infection because white blood cells fight off infection. 'The white blood cell count in your CBC helps us to determine the strength of your immune system,' says Hansen. Although a blood test is one test you don’t have to study for, the measurements it takes can point to a host of information. 'It primarily measures white blood cells, red blood cells and platelets,' explains Hansen. We asked Benjamin Hansen, M.D., to explain what providers can learn from a blood test and why it’s important to get one as part of your annual checkup.ĬBC, the initials, sound innocent enough, right? In fact, when your favorite TV doctor orders a CBC, or complete blood count, it’s often the first step in getting an overall picture of your health. In fact, a tiny vial of it can tell your doctor a wealth of information. It can make you squeamish to think about it, yet every drop is vital to your health.
