In order to ensure a smooth nucleic acid testing process and accurate nucleic acid test results, and to reduce the risk of new coronavirus infection, so try not to drink alcohol before the nucleic acid test. Alcohol will stimulate the mucosal cells of the gastrointestinal tract and speed up the peristalsis of the gastrointestinal tract, and nucleic acid testing samples will also stimulate the pharynx. In addition, do not eat 2 hours before the nucleic acid test, and do not smoke, drink, or chew gum for the first 30 minutes to avoid irritating the pharynx and causing vomiting when sampling, which can affect the accuracy of the test. Wear a mask and prepare a spare mask when doing the nucleic acid test, and keep a distance of one meter when waiting for the test to avoid cross infection. After the nucleic acid test, change into the prepared spare mask and leave the testing site quickly to avoid crowd gathering and increasing the risk of infection.