Can nucleic acid positive be identified as COVID-19? How is the nucleic acid test one positive and one negative?

1 Can it be confirmed as COVID-19 at one time? No, it may be misdiagnosed, and it needs to be repeated several times.

Although nucleic acid test is a method to diagnose whether COVID-19 is infected, positive nucleic acid test can't immediately confirm the infection, because there may be false positive, which is mainly caused by the contamination of samples during the inspection.

At this time, it is generally recommended to carry out more nucleic acid tests, so as to ensure the accuracy of the results; If the nucleic acid test is positive for more than three times, it is regarded as a suspected case.

At this time, further examination is needed, such as lung CT examination and blood test. And judging whether the virus is infected or not according to the detection result; If you are confirmed to be infected with the virus, you need to be isolated immediately.

What is the problem of nucleic acid detection-one positive and one negative? Two virus indicators were detected, and the results were one yin and one yang, which needed to be re-detected.

RT-PCR technology specifically detected ORF and n protein, one of which was single positive, while both of them were double positive. However, the positive may only be the virus carrier, not infected, there is a certain possibility that the body's immune system will destroy it; Double positive virus has propagated in the host and can be diagnosed.

In fact, COVID-19's nucleic acid test results were positive. Simply put, it is to detect two virus indicators, and the result is one yin and one yang, which needs to be re-detected; Single positive, a little suspicious, need to do it again, double positive, that is, diagnosis, need to see a doctor in time.

Can nucleic acid test positive self-heal? There are two possibilities for nucleic acid detection. One is that the detected pathogen is infected in the body. If the detected pathogen is directed at novel coronavirus, there is a possibility of novel coronavirus infection. It is necessary to combine the patient's epidemiological history, clinical manifestations, laboratory examination and chest CT examination to comprehensively judge whether the patient is infected with novel coronavirus, and a second reexamination is needed if necessary.

There is also a false alarm. For novel coronavirus, the probability of false positive of nucleic acid detection is not very high. At this time, it is necessary to carry out secondary testing and re-examination, and at the same time, it is necessary to make a comprehensive judgment according to the epidemiological history and clinical manifestations of the patient.

It is suggested that once the nucleic acid test is positive, it is impossible to heal itself. But if it is single positive, and its immunity is relatively high, then the body's immune system will destroy it.

4 How to judge whether you are infected with COVID-19 In addition to nucleic acid testing, you can also judge whether you are infected with COVID-19 by the following methods in your life, as follows:

1, fever, cough, malaise, chills, stuffy nose, runny nose and other symptoms similar to a cold.

2. When you come back from high-risk or contact with suspected infection cases, you should take the initiative to report and observe your body temperature regularly.

3, the symptoms are sharply aggravated, dyspnea, respiratory failure, and the function of various organs is significantly reduced, including bleeding.

If the above symptoms appear, you need to go to the hospital in time for relevant examinations, including nucleic acid detection and chest CT detection, to determine whether you are infected with novel coronavirus.