I believe that many people will open their mouths to "ah" when doing nucleic acid.
Image source: Network
But some time ago, the topic of #nucleic acid testing don't be more # rushed to the hot search!
Image source: Weibo
I believe that many people will wonder, whether it is to check the tonsils or do nucleic acid testing, shouldn't they open their mouths "ah"? How suddenly I don't let "ah" go.
Today, we will come to the most complete reveal.
Why "ah" when doing nucleic acids?
The new crown pneumonia virus is transmitted through droplets or aerosols, mainly infecting the respiratory system of the host, the virus colonizes the respiratory tract and multiplies rapidly, and the virus population increases sharply and is detoxified outward through respiratory secretions.
The nasal cavity and throat area are the only way for respiratory secretions to be discharged, and the presence of the new crown virus can be most detected here. Poking the throat detects the oropharynx, which is deeper.
In order to ensure accurate sampling, the sampler needs to ensure the standardization of specimen collection. Throat swabs have certain requirements for the depth of collection, and both pharyngeal tonsils and posterior pharyngeal wall need to be wiped with swabs 3 to 5 times.
But before the isthmus of the pharynx, our tongue resists in front of it, which is a barrier to collecting nucleic acid samples. To lower the tongue and leak out the tonsils, saying "ah" is a simple and quick way to do it.
Source: Dr. Lilac
When doing nucleic acids, why can't I "ah"?
When doing nucleic acids, the main reason for not saying "ah" is actually the high transmissibility of the new crown virus.
When the sampler is a positive patient, shouting "ah" may exhale a large amount of virus and form an aerosol in the sampling area, causing the sampling point environment to be directly contaminated.
When the next test is made, it may be inevitable to inhale the aerosol of the virus into the respiratory tract.
Is it "ah" or not "ah"?
And "ah~" and not "ah~"! What exactly to do?
Liu Lei, director of the Shenzhen National Clinical Research Center for Infectious Diseases and secretary of the Party Committee of the Third People's Hospital of Shenzhen, answered this question in an interview.
It is best not to make a sound during detection. Open your mouth, but it's best not to spray outwards. Hold your breath and tell yourself I'm "ah"!
Simply put, it is to do the tongue position of "ah", but don't exhale, don't pronounce it.
Nucleic acid testing should be noted
When measuring nucleic acids, pay attention to these five things!
Do not chew gum, betel nut, drink alcohol;
Pharyngeal sensitive patients are best not to eat two hours before the test;
Keep a distance of one meter and do not chat;
Do not place personal belongings on the testing table;
It is best not to make a sound during the test.
Source: Network
Source: China News Network, People's Daily, Tencent Medical Code, Dr. Lilac
Edited by: Yeah Reviewer: Xiao Ran