Generally, nucleic acid test review refers to performing a nucleic acid test again or several times, such as the new coronavirus nucleic acid test, and is performed primarily to rule out the possibility of a false positive from the previous nucleic acid test or tests. Nucleic acid tests look for the nucleic acids of viruses. Nucleic acid tests look for the presence of nucleic acids of invading viruses in a patient’s respiratory specimen, blood, or feces to determine whether the patient is infected with a virus. For example, novel coronavirus nucleic acid testing is commonly performed by fluorescent quantitative PCR, but if a positive result occurs, a nucleic acid review is required to rule out the possibility of false positives from the previous nucleic acid test or tests. For the new coronary virus nucleic acid test, it is necessary to pay attention to the fact that no smoking, drinking, chewing gum, etc. should be done 30 minutes before sampling; during the test, the test taker needs to wear a mask correctly, remove the mask before the test, and put it back on immediately after the test; when waiting for the nucleic acid test, keep a distance of more than 1 meter from other people, and don’t talk, don’t congregate.