Nucleic acid testing after eating oranges usually has no effect on the test results. Nucleic acid test is used to detect the presence of viral genetic material in the body, usually diet will not lead to the phenomenon of viruses appearing out of thin air or disappearance of viruses in the body, therefore, in time to carry out the nucleic acid test before eating oranges, the nucleic acid test results will still be accurate and generally will not have an impact. Oranges contain a large amount of fruit acids, eating too many oranges may cause stomach acid and other conditions, at this time for nucleic acid test sampling may appear regurgitation, dry heaving and other symptoms, so it is recommended that the nucleic acid test do not eat a large number of oranges, in order to avoid the above adverse reactions during sampling.