A General Blood Picture (GBP) is also known as a Complete Blood Picture (CBP) test. It is a collection of tests that give information about red blood cells (RBC), white blood cells (WBC), and platelets in the blood. It is done regularly to get a sense of a patient's overall health. A general blood picture is an essential diagnostic tool that can help detect a wide range of conditions, such as anemia, infection, inflammation, and bleeding disorders.