A complete blood count (CBC) is a common blood test that evaluates the cells circulating in the blood. This includes red blood cells, white blood cells, and platelets. The test provides information about the quantity and characteristics of these cells, offering insights into various health conditions. For example, an elevated white blood cell count may indicate infection or inflammation.
The primary utility of a CBC lies in its ability to detect abnormalities in blood cell production or function. These abnormalities can be indicative of a wide range of conditions, including anemia, infections, bleeding disorders, and some cancers. Historically, the CBC has been a fundamental diagnostic tool in healthcare, providing a broad overview of a patient’s overall health status.