Does COVID-19's self-test positive need a second confirmation? Is COVID-19's self-test box really positive?

COVID-19 self-test box is a popular test product recently. I usually test it at home by myself. The operation is relatively simple, and whether COVID-19 is infected can be detected in a short time. However, COVID-19 self-test box is not the standard of diagnosis. If it is positive, it is necessary to isolate and detect nucleic acid to make a diagnosis. Let's take a look at it with me!

Does COVID-19's self-test positive need a second confirmation?

Generally, secondary confirmation is needed, and only isolated nucleic acids can get the most accurate results.

If the self-test is positive, it needs to be reported immediately → transported to the fever clinic → nucleic acid detection.

1, the antigen test is positive, and residents should immediately report to the community (village) whether they have symptoms such as respiratory tract and fever.

2. Transport it to a medical institution with a fever clinic for nucleic acid detection.

If the self-test is positive, the kit needs to be processed:

1. Isolate observers: put used sampling swabs, sampling tubes, test cards, etc. Put it in a sealed bag, and the medical waste will be checked by the management personnel or treated according to the procedure.

2. Community residents: If the test results are positive, they need to be handed over to medical institutions for medical waste treatment when transporting personnel.

Is COVID-19's self-test box positive really positive?

There is a high probability that it is really positive.

On the premise that there is no problem with antigen detection reagents, positive antigen detection means that there are corresponding pathogens in the human body, and the carrying capacity may be high. Because the sensitivity of nucleic acid detection is higher than that of antigen detection, as long as the antigen is positive, it is very likely that nucleic acid detection is also positive.

False positive means that the tester does not carry pathogens, but the test results are positive. The probability of false positive in antigen detection is not high, on the contrary, it is more likely to appear false negative. False negative refers to missed detection, and the tester carries pathogens, and the test result should be positive, but the result is negative. Sometimes, samples taken from the upper respiratory tract such as nasopharynx and oropharynx may not get pathogens, or the number of pathogens contained in the samples is small, which may cause false negatives.

Is COVID-19's self-test box stuck in his nose or throat?

Poke your nose at ordinary times.

Open the medicine box, and there are four things in it, namely a nose swab, a disposable sampler, a test card and an instruction manual.

Detection process:

According to the instructions, the reporter washed his hands and blew his nose before the test.

2. Then open the nasal swab, put it in the nasal cavity 1.5cm, and change the nasal cavity for 5 seconds to repeat the operation. Then put the nasal swab into the sampler to make the sample dissolve in the liquid as much as possible, discard the tail of the nasal swab, cover the sampler and shake it for a few seconds, and drop the mixed solution on the test card.

3. After15 minutes, the test results can be interpreted according to the instructions, and the test results are negative. Convenient, cheap and fast are the most intuitive feelings of journalists.