When waiting for the test, the person in front should not step forward immediately after the sampling is completed, but wait until the previous person leaves and the medical staff completes hand disinfection and takes out a new cotton swab before stepping forward. Take off the mask only for a short time during sampling, hold your breath, and put on the mask immediately after sampling.
Beijing News (Reporter Dai Xuan) Nucleic acid testing is the "gold standard" for determining new crown infection.
However, as cases continue to be screened out in society, some citizens expressed concern about the safety of normalized nucleic acid.
Today, Wang Quanyi, deputy director and chief expert of the Beijing Center for Disease Control and Prevention, reminded the precautions for normalized nucleic acid testing.
Why do nucleic acid testing?
——The new crown is clinically non-specific and difficult to diagnose through symptoms
Today, Wang Quanyi, deputy director and chief expert of the Beijing Center for Disease Control and Prevention, answered reporters' questions about the necessity of nucleic acid testing.
Wang Quanyi said that there are many asymptomatic infections and mild symptoms of new coronary pneumonia, and the clinical manifestations are not specific. It is difficult to diagnose new coronary pneumonia through symptoms and signs.
Nucleic acid detection has relatively high sensitivity and specificity, is economical and fast, and is the "gold standard" for laboratory diagnosis of new coronary pneumonia virus infection.
Occupational exposure risks exist for port staff, medical staff at fever clinics, staff at centralized isolation points and other occupational groups. Personnel in key institutions such as nursing homes and construction sites are likely to cause transmission after infection. These occupational groups and personnel in key institutions should follow the prescribed frequency Carry out nucleic acid testing, detect cases as soon as possible, and take timely measures to control the spread.
When a case of new coronary pneumonia occurs in a community, building, or unit, it is necessary to complete the nucleic acid test of all employees in the shortest possible time, and find other infected persons as soon as possible.
The follow-up testing frequency should also be determined according to the risk assessment, so as to further discover infected persons who are already in the incubation period and control the epidemic as soon as possible.
Residents in high-risk areas have a higher risk of infection. Nucleic acid testing and antigen testing should be carried out in accordance with the prescribed frequency, so that positive people can be found as soon as possible to reduce the risk of reoccurrence of co-residents.
Residents in high-risk areas should strictly implement personal protection during nucleic acid testing, participate in nucleic acid testing in an orderly manner in time-sharing and divisions, and wear N95 or KN95 medical protective masks in a standardized manner.
When community transmission occurs, there are hidden infected people in the society. These people can spread the virus as the source of infection, but they are not easy to be identified.
According to the requirements of the ninth edition of the prevention and control plan, "after the outbreak, after the investigation and judgment of the epidemic, the transmission chain is unclear, there are many risk places and risk personnel, and the mobility of risk personnel is large. One nucleic acid test for all staff. After 3 consecutive nucleic acid tests without socially infected persons, another nucleic acid test for all staff will be carried out at an interval of 3 days. Those without socially infected people can stop the nucleic acid test of all staff.” Carry out nucleic acid testing for all personnel in a certain area Detection can identify potential infected persons, realize early detection, early reporting, early isolation, early treatment, and block the spread of the virus.
Is normalized testing safe?
- need to do these things
Wang Quanyi reminded that to carry out normalized nucleic acid testing outdoors in winter, the following points should be paid attention to.
The outdoor temperature is relatively low in winter. Before going out, you should know the outdoor temperature and wear more clothes to avoid catching cold.
If you are doing nucleic acid sampling near your work or home, you should know the queuing situation at the nucleic acid testing point in advance, and if time permits, try to avoid the peak queuing.
Wear a mask before going out. The elderly and infirm may consider wearing an N95 mask.
Be sure to keep a distance of two meters when queuing.
To line up in the shape of "one", not in the shape of "back".
When scanning the code and registering, do not touch the nucleic acid testing table, and do not put your mobile phone or ID card on the table.
Do not step forward immediately after the person in front finishes sampling, wait until the person in front leaves and the medical staff completes hand disinfection and takes out a new cotton swab before stepping forward.
Take off the mask only for a short time during sampling, hold your breath, and put on the mask immediately after sampling.
After sampling, do not stay at the sampling point, and wash your hands after returning home.
Nucleic acid testing sites are not social places, please do not get together and chat before, during and after sampling.
Especially for nucleic acid tests organized by communities, villages or units, there are many colleagues and neighbors, so don’t gather to chat, don’t eat snacks, wear a mask except for sampling, and keep a distance of two meters.
"As long as these protective measures are taken well, the risk of normalized nucleic acid testing is extremely low, so don't worry too much." Wang Quanyi said.
(Beijing News reporter Dai Xuan)