There are more biochemical examination items, mainly including the following items: a. liver function, including transaminases, bilirubin, etc.; kidney function, including urea nitrogen, creatinine, uric acid, etc.; b. blood glucose, including fasting blood glucose, postprandial blood glucose, etc.; c. blood lipids, including triglycerides, low-density lipoprotein, high-density lipoprotein, etc.; d. cardiac enzymes, including creatine kinase, etc.; electrolytes, including potassium, sodium, calcium, etc.; e. trace elements, including copper, magnesium, etc.; and blood amylase, etc. etc.; V. Trace elements, including copper, magnesium, etc., and blood amylase, etc. Before the examination, it is recommended to consult a specialist and choose according to your situation. In addition, biochemical tests require that the examinee should not eat anything after 12:00 p.m. the night before the test, and should not drink alcohol or it will affect liver function, kidney function, etc. If you have recently had a cold, or are taking certain drugs, you should also wait until you have fully recovered from the disease and stop taking the drugs for about a week before doing the test, so as not to affect the test results.