목구멍 면봉과 코 면봉을 동시에 검사해야합니까?

베이징에서 열린 신종 코로나바이러스 전염병 예방 및 통제에 관한 기자회견에서, 시궈칭, 국가위생건강위원회 전문가이자 중국 CDC 응급센터 부국장, 구인두 면봉 채취와 비인두 면봉 채취가 두 가지 방법의 전체 이름이라고 하더군요. 표준적인 방식으로 운영되는 경우, there is essentially no difference, and they are all for collecting pharyngeal specimens.

The difference is that in order to collect pharyngeal specimens, one is from oral cavity and the other is from nasal cavity, so they are called oropharyngeal swab and nasopharyngeal swab respectively.

In collecting samples of oropharyngeal swabs, the sampler can see the sampled parts, but may bring nausea, vomiting and other reactions; When sampling nasopharyngeal swabs, if the operation is standardized, the sampling throat position can not be seen, which mainly depends on hand sensory resistance, with higher technical requirements and less irritation to mucous membranes, but the public’s acceptability is lower.

Because the virus content in pharynx is affected by time and other factors, the positive rate may be affected by oral swabs, but it is not necessary to carry out the two methods together.

Then what’s the difference between the 2 methods?

비강 면봉: Put the swab into the nose and scrape it for sampling, and collect the mucous membrane or dropped tissue cells in the nasal cavity for inspection.

Throat swab: Put the swab into the throat, gently scrape the throat at the bottom of the throat, and collect the mucous membrane or dropped tissue cells of the throat for inspection.

The difference is that when there are different diseases or conditions, there will be different infection conditions or different substances in the samples of nose and throat. 그러므로, some diseases can be easily detected with nasal swabs and others with throat swabs. After that, the technical principles are basically the same. 하지만, COVID-19 pneumonia is a lower respiratory disease, both of which are samples of upper respiratory tract, and there is no obvious difference in theory.