How to make nasopharyngeal swab

The nucleic acid detection of nasopharyngeal swab can be divided into two types: nasal swab nucleic acid detection and pharyngeal swab nucleic acid detection. These two kinds of nucleic acid detection methods are similar, both of which are to collect virus samples by sticking a cotton swab into the throat or nasal cavity. There will be some discomfort when being collected, so it is recommended to wait patiently to avoid secondary collection.

Nasopharyngeal swab nucleic acid detection is the only detection method used to detect novel coronavirus. If the test result is positive, it means that the patient has been infected with novel coronavirus; if it is negative, it is confirmed that the patient is not infected with the virus. In order to prevent asymptomatic infected people from being found, universal testing has been adopted, so most people are curious about how to do this test, so how to do nasopharyngeal swab nucleic acid testing?

1. How to detect nucleic acid in nasal swab?

Everyone needs to wash the secretions of nostrils and nasal cavity before the nucleic acid detection of nasal swab. During the test, you need to keep your head still and try not to cough or sneeze. When the cotton swab is inserted into the nasal cavity, there will be a serious foreign body sensation. Everyone can relax and not struggle too much to prevent the need for a second examination.

2. How to detect nucleic acid in throat swab?

The nucleic acid detection method of throat swab is almost the same as that of nose swab. During the examination, the collector will choose to press the tongue with a long cotton swab, and the collector needs to open his mouth and make an "ah" sound. Because the cotton swab is long and needs to touch the throat to collect sample information, most people will have retching and vomiting when collecting samples. It is recommended to wait patiently to avoid secondary collection. If the foreign body feels heavy, it can be used.