Routine blood tests are usually around$20, and the price may vary in different areas and at different levels of hospitals. The common tests for routine blood tests are the number of white blood cells, as well as the ratio of various cells, such as the ratio of neutrophils, the ratio of lymphocytes, the ratio of eosinophils, the ratio of basophils and the ratio of monocytes. There are also the number of red blood cells, red blood cell pressure, and hemoglobin concentration, as well as the average volume of red blood cells, the average hemoglobin amount of red blood cells, and the average hemoglobin concentration of red blood cells, the width of red blood cell volume distribution, the number of platelets, platelet pressure, and the proportion of large platelets, neutral platelets, and small platelets. Routine blood tests are generally used to determine whether the body is in a pathological state and provide useful diagnostic information for clinical purposes.