Is it safe not to notify nucleic acid detection for 24 hours?

If the review notice is not received within 24 hours, it is considered that the nucleic acid test result is negative, and it does not matter.

The substance of nucleic acid detection is the nucleic acid of virus. Nucleic acid detection is to determine whether the patient is infected by COVID-19 by detecting whether there is nucleic acid of foreign invasive virus in respiratory tract samples, blood or feces. So once it's detected as nucleic acid? Positive? It can prove that the patient has a virus in his body.

After COVID-19 infects the human body, it will first reproduce in the respiratory system, so we can judge whether the human body is infected with the virus by detecting the virus nucleic acid in sputum and nasopharyngeal swab. Therefore, positive nucleic acid detection can be used as a new standard for the diagnosis of novel coronavirus infection.