Do your own nose nucleic acid steps at home

Nucleic acid detection nose refers to the detection of novel coronavirus's nucleic acid by nasal swab method. The specific method is to insert the nasal swab in the direction perpendicular to the nose until the hand touches the wall, let the nasal swab stay in the nose for 15-30 seconds, then gently rotate it for three times, take it out, and then send it for inspection as soon as possible.

This is a pathogen detection method. By RT-PCR or high-throughput sequencing, novel coronavirus nucleic acid can be detected in lower respiratory secretions such as nasopharyngeal swabs, blood, feces and other samples. It is more accurate to detect lower respiratory tract samples, such as sputum or airway extracts.

In addition to pathogen detection, there are serological tests. Novel coronavirus-specific IgM antibody usually begins to appear positive after 3-5 days of onset, but the recovery period of IgG antibody titer is only 4 times or more than 4 times higher than that in acute stage.

note:

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.