Abnormal information is pushed by the national confirmed case database. Abnormal reason: What happened to the patient who tested positive?

Abnormal nucleic acid results mainly refer to unqualified test results, including the possibility of false positive or false negative, but it does not mean that the nucleic acid test results must be positive. There are sample problems, reagent problems and subjects problems that affect the results.

1. sample problem: nucleic acid detection is usually carried out by means of oropharyngeal swab and nasopharyngeal swab. If the sample is not obtained enough, atypical or poorly preserved, it will cause errors, resulting in abnormal nucleic acid results and false positive or false negative.

2. Reagent problem: Some laboratory reagents will be used for nucleic acid detection. If there is something wrong with the reagent, such as the reagent is expired or not used in time after opening, the exposure time is too long or the reagent is obviously damaged, these factors may lead to abnormal nucleic acid detection results.

3. Candidate's problem: The examinee touches the testing tool, or when sampling the examinee, the examinee fills in the wrong certificate number or name in the nucleic acid, and the test result is inconsistent with the personal information of the key platform, which may lead to abnormal test results.

An abnormal nucleic acid test result in COVID-19 means an abnormal nucleic acid test result, and a second or more nucleic acid tests are needed to explain whether COVID-19 is infected.