Blood and urine tests are best done on an empty stomach, mainly because urine tests require an empty stomach, morning urine is the most accurate test, and diet has little effect on blood tests. These two tests have different meanings. For example, blood tests can be used to assess inflammation and infection in the body, as well as the presence of anemia. Urine routine can be used to detect early kidney disease, as well as diagnose diseases such as urinary tract infections. If the corresponding indicators are abnormal, according to the specific conditions of targeted treatment, if the patient has a positive urine protein occult blood, often related to nephritis, nephrotic syndrome and other diseases, the need for targeted application of some of the protection of the kidneys of the medication, to prevent the deterioration of the condition. Usually pay attention to life, can not stay up late, overworked.