In addition, the written steps about antigen detection are as follows:
1. Wash your hands. Wash your hands with running water or hand disinfectant.
2. Unpack the outer packaging of the nasal swab to avoid touching the swab head. Then the head tilts slightly, and the cotton swab slowly penetrates backward along the bottom of the inferior nasal passage to 1- 1.5 cm, then clings to the nasal cavity and rotates for at least 4 times (the residence time is not less than 15 seconds), and then repeats the same operation on the other nasal cavity with the same cotton swab.
3. After the sample is collected into the sampling tube, place the nasal swab and rotate the swab head in the preservation solution for at least 30 seconds. At the same time, squeeze the cotton swab head through the outer wall of the sampling tube for at least 5 times to ensure that the sample is completely eluted in the sampling tube.
4. Discard the cotton swab, cover the sampling tube, and drop the liquid vertically into the sample hole of the test card.
5. According to the reagent instructions, wait for a certain time to explain the results.