The confirmatory test for anemia of chronic disease is a complete blood count (CBC) test. A CBC test measures the number of red blood cells, hemoglobin, and hematocrit levels in the blood. If the levels of these components are lower than normal, it indicates anemia. Additionally, other laboratory tests may be performed to help diagnose anemia of chronic disease, such as a serum iron test, a serum ferritin test, and a total iron-binding capacity test. These tests measure the amount of iron in the body, which can help diagnose anemia of chronic disease. Additionally, the physician may also order a reticulocyte count, which measures the number of immature red blood cells in the body.