When the results of the nucleic acid test are available in the afternoon requires a comprehensive judgment based on the specifics of the testing facility, as well as the time of sampling. In general, nucleic acid test results are available within 24-48h, but there are test sites that can take results after 6 hours. In addition, special circumstances, such as a smaller hospital, smaller staff, or a large number of nucleic acid test specimens, can lead to a longer time for the results to be available. Currently, the common method of nucleic acid testing for new coronavirus is PCR testing, such as nasal swabs and pharyngeal swabs, and the laboratory takes batch operations to process specimens, extract nucleic acid, determine results, and issue reports. Therefore, if the test is performed before 2:00 p.m., the results may be available on the same day, and if the test is performed after 2:00 p.m., it may take the second day to get the results, and the hospital’s testing staff can be consulted for more accurate timing. If you have recently arrived in a medium to high risk area, you need to take a nucleic acid test after returning to your place of residence, pay attention to self-protection and isolation, and avoid going to public places with large crowds. If the nucleic acid report is negative, good daily protection is sufficient; if the nucleic acid report is positive, retesting should be done immediately at the hospital, and if the person is confirmed to be infected with the new coronavirus, he/she needs to be isolated and treated first.