Check serum biochemistry after breakfast, some biochemistry test items require fasting, and the results will be affected after meals. Common biochemical items include cardiac enzymes, renal function, liver function, blood glucose, blood lipids and so on. 1. Cardiac myosin is an important indicator for diagnosing heart disease, which is an emergency program, and its test is not affected by the time or whether or not to eat meals. 2. Kidney function is a test to assist in the diagnosis of renal impairment, renal failure and other diseases, and also belongs to the follow-up program, which is not affected by the time or whether to eat. 3. Liver function is a test to reflect the recent condition of the liver, which includes a variety of enzymes and proteins, etc., and eating will affect the results of its program. 4. Blood glucose is a reflection of the body’s blood glucose level, generally for disease diagnosis or monitoring more use of fasting blood glucose test indicators, or fixed one hour after meals, two hours of blood glucose indicators, etc., after eating blood glucose will rise significantly. 5. Lipids reflect the body’s lipid content, but also requires fasting test, after eating the test results on the test results. Serum biochemical testing should be based on the specific test items to determine whether fasting is required.