Complete Blood:-A complete blood count (CBC) is a blood test used to evaluate your overall health and detect a wide range of disorders, including anemia, infection and leukemia. A complete blood count test measures several components and features of your blood, including: Red blood cells, which carry oxygen. Erythrocyte Sedimentation Rate (ESR):- Sed rate, or erythrocyte sedimentation rate (ESR), is a blood test that can reveal inflammatory activity in your body. A sed rate test isnt a stand-alone diagnostic tool, but it can help your doctor diagnose or monitor the progress of an inflammatory disease.