The main methods of nucleic acid testing for New Crown are pharyngeal swab and nasal swab, which have more precautions, mainly to avoid errors in the results.
1. It is not recommended to do nucleic acid test within 48 hours after vaccination to avoid false-positive nucleic acid results.
2. Ensure the hygiene of the nasopharynx. Nucleic acid test is mainly performed by collecting secretions from the mucous membrane of the nasopharynx, and avoid eating within 2 hours before the test. Avoid eating for 2 hours before the test. You should not be too full before the test to avoid nausea and vomiting due to discomfort during the test.
3. Wear a medical mask correctly and line up 1 meter apart. Please do not reuse a mask and change the mask in time.
4. Avoid drinking, smoking, alcohol and other behaviors within half an hour before sampling.
Please take protective measures during the nucleic acid test and follow the instructions on the site to conduct the test in an orderly manner.