Is there a fluorescent agent and carcinogen in nucleic acid sample cotton swabs?fake!

Cover Journalist Ning Zhi

With the recent outbreaks of the country, large -scale nucleic acid testing has been organized in many places. Sichuan Chengdu also launched a global nucleic acid test on September 1.

Recently, a rumor of "nucleic acid sample cotton swab is poisonous" appeared in the circle of friends: "It is not called cotton swab, because it is a chemical fiber, the professional name is a fluorescent probe, which contains a broken nylon fiber, carcinogenic poison ethylene ethylene oxide ethylene oxide, , Mogonz fiber, radioactive elements, carcinogenic fluorescent preparations ... can damage the blood -brain barrier, cause damage to the opposite nerve and olfactory nerves. "

In fact, this rumor has appeared many times this year and has been rumored many times. In the screenshot of the circle of friends, except for the nucleic acid sample cotton swabs "not called cotton swab, it is chemical fiber" is right, all other sayings are wrong.

Nucleic acid sample cotton swab is the sample swab that medical staff. In June of this year, Li Jinming, deputy director of the Clinical Inspection Center of the National Health and Health Commission, pointed out when answering reporters that the sampling swab looks like a cotton swab, but it is not a cotton swab. Its material is polyester or nylon fiber, and in our daily life. The toothbrush is similar, and the bristles of the toothbrush are also nylon.

"However, during the sampling process, the sampling swab is a million tiny fiber vertically and uniformly covered onto the end of the handle. When we sample, we are like a toothbrush brushing teeth, but it is the swallow of our mouth. Take the cells in the wall and put the sample swabs in the sampling tube. Because it uses nylon and polyester, it is easy to get rid of the saving liquid, and the laboratory will be tested by the laboratory. "Li Jinming said.

The nausea is more nauseous after the public reports, and some of the irritating substances will cause serious damage to the body. Li Jinming responded that the sampling swab is a medical device. The production environment and requirements are very strict. Relevant standards, the most basic standard for a product is non -toxic and harmless, and there will be no harmful substances in the process of samples. As for the sampling process, such as discomfort or disgusting feelings will have some stimuli. Different people respond differently. For example, some people have a sensitive pharynx, and they feel uncomfortable after sampling. Therefore, in the process of sampling, scrape the post -pharyngeal wall. When scraping, someone is stimulated and has a foreign body sensation, which will cause itching or vomiting. The differences between these individuals are relatively large.

"There is another situation. When sampling, it is usually opened, and some people have soft palates together. If the sample people want to ensure the sampling quality, they will explore it. As soon as you explore, there are stimuli. Some people have a strong stimulus response, and there are vomiting and cough, but once the sample is completed, it is easy to relieve. So the sample does not hurt our individual. "Li Jinming said.

It is worth noting that the online news includes the saying that the "sampling swab professional name is fluorescent probes" and "containing carcinogenic fluorescent preparations". These claims are all wrong.

According to previous reports, there are indeed "fluorescent probes" during nucleic acid testing, but it is two things that are completely different from the sample swab. The sampling swab is used in the sampling of antigen detection and nucleic acid detection, and the "fluorescent probe" is used in the sample detection link. It requires-20 degrees Celsius to avoid light and save it. Therefore, in the sampling of nucleic acid detection, fluorescence probes are not used at all, which cannot affect citizens' physical health.

Industry experts emphasized that the sampling swab is a medical device, and the basic requirement of qualified products is non -toxic and harmless. It is rumored that "nylon fiber, carcinogenic poison ethylene, Mogonz fiber, radioactive element 锝, carcinogenic fluorescent preparations "Wait is not related to the sample swab.

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