How to do nucleic acid detection?

At present, the method of nucleic acid detection is to take a throat swab (after the virus is infected, it will reach the oral mucosa epithelium, and the sampling purpose can be achieved by taking the throat swab), and send it to a special detection room within 1 hour. This nature determines that it is impossible for every patient to do it right away if he wants to. For example, patients who come in the middle of the night can't do it, so they can only wait until the instrument is turned on the next day.

Taking throat swab is a high-risk operation. According to the current clinical research, there are three modes of transmission in novel coronavirus, namely direct transmission, aerosol transmission and contact transmission. Among them, fog droplets are mixed in the air to form aerosol, which causes infection after inhalation. Therefore, there is a risk of infection for sampling personnel.

Result judgment:?

If the test result is negative, the patient is relatively safe, but the danger cannot be completely ruled out (because the sample quality or the existence of inhibitors may lead to false negative results); If the test result is positive, the patient is in danger. The first and second steps have strict operating procedures and operating conditions. The overall time consumption is between 1-4 hours.

At present, the nucleic acid detection in Xiangya Hospital of Central South University usually starts at 1 1, and the results are reported around 16. During the period of nucleic acid detection and waiting for nucleic acid detection, patients can't leave the hospital at will.

If the nucleic acid is negative for two consecutive times and there are no clinical symptoms, the isolation will be further lifted according to the condition. If the nucleic acid is positive, mild cases can be isolated with household masks. We have prepared a proposal for home isolation, which is very detailed. Non-mild cases must be treated in isolation according to law.

Extended data:

29 hospitals in Shenzhen carry out nucleic acid testing for citizens.

In order to better prevent and control COVID-19, on April 9th, the Shenzhen Municipal Health and Wellness Committee announced the list of 29 hospitals that carry out COVID-19 nucleic acid testing for the public. If citizens are worried about COVID-19 infection, they can have it tested.

In terms of nucleic acid sampling, 29 hospitals will set up relatively independent areas near general clinics or fever clinics as nucleic acid sampling points. In order to avoid cluster sampling, the Municipal Health and Health Commission also encourages hospitals to make online appointments, sample by time, use mobile terminals to pay fees, and push test results by SMS or WeChat to avoid crowds gathering in medical institutions.

In addition to those from Wuhan to Shenzhen, other citizens can also go to these hospitals for testing if necessary. The single service price of nucleic acid detection is about 160 yuan (excluding consulting fees or handling fees).

Take Shenzhen Hospital of Hong Kong University as an example. The hospital has opened a nucleic acid screening clinic, which is open from 8 to 20 every day. The public can make an appointment for the "nucleic acid screening clinic" directly at the official WeChat account of Shenzhen Hospital of HKU.

The outpatient consultation fee of HKU Shenzhen Hospital 100 yuan/person, the nucleic acid screening fee 160 yuan/person, ***260 yuan, can be paid by Shenzhen first-class medical insurance. Generally, the results can be produced within 24 hours.

People's Daily Online-29 hospitals in Shenzhen carry out nucleic acid testing for citizens.

Huasheng Online-Xiangya Hospital of Central South University: Three truths about nucleic acid detection