Why don’t you say “ah” during nucleic acid testing? How did the doctor warn about this?

Because when you make the sound "ah", you need to breathe, which will cause a large amount of aerosol to be sprayed out.

There are many methods for nucleic acid testing, in addition to throat swabs, nasal swabs, and anal swabs. In the process of epidemic prevention, the most common detection method is throat swab. In this nucleic acid detection method, the tester needs to open his mouth and cooperate with the medical staff. When using a throat swab for testing, we can successfully complete the test even without the "ah" sound. Therefore, in order to reduce the unnecessary spread of the epidemic, experts do not recommend that we open our mouths and make "ah" sounds when taking nucleic acid tests.

Because when we make the sound of "ah", there will also be airflow exhaled and spread into the air. In this case, if you are an uninfected person, there is no risk; if you are an infected person, you will pose a great risk. When an infected person takes a nucleic acid test, they will make an "ah" sound, which will cause the virus to be exhaled and spread into the air. In this way, when the nucleic acid testing personnel take off their masks and open their mouths to breathe, the virus will be sucked into the mouth, and the epidemic will be spread during the nucleic acid testing process.

Do not eat or drink for two hours before the test. People with sensitive throats should not eat to avoid vomiting. Don't smoke, drink, chew gum, etc. Half an hour before sampling to avoid interfering with the test results. When in line, keep your distance. Obey the arrangements of on-site staff, keep a distance of 1m, and cooperate with staff to complete information registration. When doing nucleic acid testing, you must pay attention to personal protection and wear a mask, because among the people tested at the same time, some people will suffer from nausea, vomiting or choking due to sensitivity to throat swabs, which will contaminate the surrounding environment. To reduce exposure and cross-infection, subjects should remove their masks after medical staff have prepared the throat swab, especially in closed collection sites. When taking samples, try to sit up straight and raise your chin slightly. It is normal to have a slight nausea reflex. During the sampling process, the person being sampled must cooperate with the sampling personnel as much as possible and must relax to avoid scratching the mucosa with the sampling cotton swab. If you experience throat discomfort or itchy nose, if you feel like retching, coughing, sneezing, etc., you must immediately cover your mouth and nose with a tissue or your elbow, and do not face others.