The following precautions should be taken when taking blood tests: 1. A few days before the blood test, be sure not to drink alcohol, as drinking alcohol can affect the results of liver function tests. In addition, do not eat foods with high sugar content, sugary drinks, high-fat foods and high purine foods to avoid affecting the results of blood glucose and lipid tests. 2. Fasting is required on the day of the blood test. The first thing you need to do is to take care of your diet the night before the blood test, and try not to eat or drink anything after 20:00 the night before. 3, when the blood test is done, you must pay attention to relaxation. The actual fact is that you can’t get a lot of money from the company and you’ll be able to get a lot of money from the company.