“Reminder: Before the nucleic acid test, be sure to wash your mouth and drink water, otherwise false positives will occur. In addition, sweet oranges and hormone drugs in fruits If you can’t take it before the test, false positives will also occur. Please be careful and tell your relatives and friends about the information. Also, after eating pickles, kimchi, fermented wine, yogurt, and drinking alcohol, you must drink enough water to rinse your mouth. If there are too many lactic acid bacteria and yeast in the test, false positives will occur, everyone, please take care!”
Recently, such a “tip” has been forwarded many times in the circle of friends. Actually, there is no scientific basis for the claim that false positive nucleic acid tests are caused by diet. Experts from the Experimental Center of the Provincial Center for Disease Control and Prevention said that whether it is nucleic acid testing or antigen testing, there is a certain probability of false positives. There is no overall pattern in the occurrence of false positive results, which are mostly caused by laboratory contamination or improper operation. The probability of false positive results caused by the influence of diet is very low. Disease control expert Ye Xufang said: “We will warmly remind citizens not to eat within 2 hours before the nucleic acid test, not to drink water for the first half hour, not to chew gum, etc. This reminder is mainly to prevent citizens from experiencing nausea and vomiting during the nucleic acid sampling process.”
So, citizens should Pay attention to what?
How do I protect myself?
Before nucleic acid detection
Wear a mask and bring the original ID card to the collection point;
It is recommended not to eat within two hours before sampling, and 30 minutes before sampling Drink water, do not drink alcohol, do not eat chewing gum, etc., to avoid possible nausea and vomiting during sampling.
nucleic acid detection in progress
< span>Conscientiously queue up in an orderly manner, wear a mask, keep a distance of one meter, and talk less and make less phone calls;
Wait for the medical staff to signal, and then go forward for testing;
span>
When testing, try to bring as few items as possible, and do not put your belongings on the collection table to avoid contamination and risk of infection;
< span>The way to take off the mask during testing should be correct. Do not directly touch the outside of the mask with your hands to avoid pollution. Take off the mask from the lanyard on both ears;
Testing You can stand or sit, keep your body relaxed, tilt your head back, and open your mouth wide. Throat and nose discomfort may occur during the test. Do not cough, sneeze or spit at others.
After nucleic acid detection
< span>Wear the mask and leave immediately, do not gather to chat or stay at the sampling site;
It is best to use hand sanitizer when leaving the collection site, and do a good job of hand disinfection.
After returning home, you should do a good job of hand hygiene. It is recommended to use alcohol to disinfect mobile phones, ID cards and other items.
Source: Guizhou CDC
Editor: Li Qinxin< /p>
Editor: An Yilun
Reviewer: Peng Qiwei