Swallow swab is a common detection method for respiratory infectious diseases, especially after the epidemic in COVID-19, China. Swallow swab collection is a common detection method for viral nucleic acid at present. If the throat swab is positive, it means that the nucleic acid test is positive and it is very likely to be diagnosed.

First, the use of throat swabs The culture of normal human pharyngeal isthmus should have normal oral flora and cannot cause other bacteria to grow. Bacteria in the pharynx mainly come from the outside world, which will not cause disease under normal circumstances, but when the body's systemic or local resistance is weak, or affected by other external factors, infection may occur. Therefore, bacterial culture of throat swab can isolate pathogenic bacteria, which is helpful for the diagnosis of some diseases, such as diphtheria, COVID-19, acute pharyngitis and so on.

Second, the throat swab sampling steps The throat swab detection method is as follows: First, check the doctor's advice, put a label on the specimen container, check the patient's information, explain the method of taking the throat swab for culture, then light the alcohol lamp and tell the patient to open his mouth and take it out? Huh? The voice, out of the throat. Then use a long cotton swab in the culture tube to wipe the secretions on both sides of the palatal arch and pharyngeal tonsils, which is sensitive. After taking it off, disinfect the test tube mouth on the flame of alcohol lamp in time, then insert the cotton swab into the test tube, plug it and send it for inspection in time. This method is very fast, and ordinary people will not feel too uncomfortable.

Third, the principle of throat swab Because human beings breathe and eat through the mouth, various bacteria and viruses will form in the mouth. Diseases such as influenza and COVID-19 spread through the respiratory tract, and the pharynx is where these bacteria and viruses gather. Therefore, sampling with throat swab is to take the secretion of the place where the virus is most likely to gather as a sample, to detect the type of virus conveniently and quickly, and to diagnose the disease accurately.

At present, throat swabs in COVID-19 can be tested in general hospitals all over the country, with different prices and policies. If necessary, you can go to the local hospital in time. Dear readers, do you understand?