The test values of upper gastrointestinal bleeding are blood routine, blood sedimentation, coagulation function, liver function, kidney function, blood ammonia, blood urea nitrogen, fecal occult blood test and so on. 1. Blood routine: patients with acute upper gastrointestinal hemorrhage will have different degrees of hemoglobin decrease, which will show microcytic hypochromic anemia. If the patient has portal hypertension combined with hypersplenism, there will be thrombocytopenia. If there is long-term chronic blood loss in the digestive tract, it will show microcytic hypochromic anemia. 2. Blood sedimentation: if the blood sedimentation is elevated, active inflammation of the digestive tract or bleeding caused by active intestinal tuberculosis cannot be ruled out for the time being. 3. Coagulation function: to clarify whether there is coagulation dysfunction. 4. Liver function: help to diagnose hepatobiliary diseases. 5. Renal function: massive bleeding in the digestive tract can lead to renal ischemia and renal insufficiency, causing elevated creatinine and urea nitrogen. 6. Blood urea nitrogen: starts to rise a few hours after gastrointestinal bleeding. 7. Blood ammonia: upper gastrointestinal bleeding can cause blood ammonia to rise, which can help determine the severity of the disease. 8. fecal occult blood test: upper gastrointestinal bleeding can be positive. If you have upper gastrointestinal bleeding, it is recommended that you need to be instructed by a doctor to conduct relevant examinations to clarify the cause of the disease, so as to avoid delaying the condition.