Many people have not had a nucleic acid test yet and have questions about it, "What do I need to pay attention to before and after I have a nucleic acid test? Does nucleic acid testing hurt?"

Nucleic acid testing is warmly organized as follows.

Avoid eating two hours before the nucleic acid test as much as possible to avoid causing vomiting.

No smoking, drinking, chewing gum, etc. should be done 30 minutes before sampling

the testers need to wear the mask correctly and remove it before the test

Wear it immediately after the test, and a spare mask can be prepared to facilitate replacement at any time after contamination; due to individual differences, tolerance, past medical history, the presence of bleeding, infection, cardiovascular accidents and other rare complications and adverse consequences, inform the collector of the history of nasal surgery, nasal septum curvature, blood disorders, pharyngeal diseases, or taking anticoagulants and other related risk factors before sampling.

During the collection of oropharyngeal swabs, the detector's head is tilted back and the mouth is opened to make an "ah" sound, which helps to expose the throat, but the process may cause irritating dry cough, nausea, vomiting and other symptoms, so the detector can cooperate with the collection personnel to try to relax and breathe deeply.

Leave the collection site immediately after the collection, avoid spitting and vomiting around the collection site, and try not to take public transportation when leaving, walking or riding is recommended. Hand hygiene is required both before and after the nucleic acid test, and hands can be wiped with hand-free disinfectant or hand-free alcohol.

Nucleic acid testing does not cause any harm to the human body, only a slight foreign body sensation during the collection, there is no pain. The principle of nucleic acid testing, in layman's terms, is to detect viruses by amplifying the sample to identify fluorescent signals.

The nucleic acid test can detect the new coronavirus antigen in the infected person. A positive test indicates that the patient is infected and is therefore important in the criteria for diagnosing neo-coronavirus pneumonia.