Recently, there are confirmed cases of new crowns in China, and it is possible that some of the partners who go to these places with confirmed cases of new crowns need to go for nucleic acid testing, because nucleic acid testing is an important basis for pathogenic diagnosis, and is also an important basis for confirming the diagnosis at present. So what do you need to pay attention to before doing the nucleic acid test?

According to the CDC experts, our respiratory tract is divided into the upper respiratory tract and lower respiratory tract, the upper respiratory tract includes the nose, throat and larynx, and the lower respiratory tract includes the bronchi, trachea and lungs. We know that nucleic acid testing is used as a basis for pathogenic diagnosis, and generally nucleic acid testing specimens are collected from deep sputum to do specimen testing.

Pharyngeal swabs are generally divided into nasopharyngeal swabs and oropharyngeal swabs, and those collected from the mouth are called oropharyngeal swabs and those collected from the nose are called nasopharyngeal swabs. At present, most hospitals use nasopharyngeal swabs because the virus collection volume of nasopharyngeal swabs is higher and the test is more accurate, although some places still use oropharyngeal swabs because oropharyngeal swabs are more convenient to sample and less painful for patients, but currently hospitals do nucleic acid testing is still mainly nasopharyngeal swabs, except for some can not do nasopharyngeal swabs will be replaced by oropharyngeal swabs.

Who is not allowed to have a nasopharyngeal swab?

When you have sinusitis or rhinitis, you should not do nasopharyngeal swab because it may cause some damage to the nasal cavity.

Precautions before doing nasopharyngeal swab.

①, do not take antibiotic drugs a few days before doing nasal swab;

②, do not use antiseptic drugs to clean the nose or apply to the nasal cavity a few days before the nasal swab;

③, do not smoke a few hours before doing nasal swab.

Precautions before doing oropharyngeal swab.

①, it is recommended to bring some water, because the weather is dry and thirst is inevitable during the queue, so you need to try to keep the throat moist before the examination, you can drink as little water as possible, but don't drink 30 minutes before the collection.

②, because to collect samples of the throat may cause throat discomfort, so it is not recommended to take throat swabs after a full meal or after drinking alcohol, and be sure to pay attention to 30 minutes before sampling should not drink, smoke, chew gum or betel nut, etc.

③, before sampling to avoid eating irritating, strong-tasting food, should be a light diet.

④, 30 minutes before specimen collection, you should not use mouthwash with disinfectant drugs or apply anti-inflammatory drugs on the throat (oral cavity) area.

⑤. You should take the initiative to cooperate with the doctor to check your personal information and inform your condition, and cooperate with him/her.

⑥. There may be a sense of vomiting after sampling, but please do not spit anywhere. It is recommended that you bring paper with you and spit in the paper wrapped well and put it into the unified garbage can for disinfection. Always do personal disinfection after arriving home, such as washing hands and laundry.

Finally, although the new crown epidemic is said to be basically stable in the country, there will still be confirmed cases, so I hope everyone still needs to do a good job of epidemic protection.

How to do the epidemic protection work?

①.Wash your hands regularly.

②、Wear a scientific mask

③.Pay attention to cough etiquette

④、Gather less

⑤、Civilized dining

⑥.Observe the 1-meter line

⑦.Ventilate your home often

⑧、Do clean and disinfect

⑨、Keep the toilet sanitary

⑩、Adopt a healthy lifestyle and vaccination.