There are three main steps in antigen self-test.
First, preparation before antigen self-test.
1, wash your hands, wash your hands with running water or hand disinfectant.
2. Understand the detection process. Read carefully the supporting instructions of antigen self-test reagent and the precautions related to antigen self-test.
3, reagent preparation. Check whether the antigen self-test reagent is within the warranty period, and check whether the contents such as nasal swab, sampling tube and test card are missing or damaged. If the reagent expires or the contents of the reagent are lost or damaged, please replace the test reagent in time.
4. Confirm the requirements for ambient temperature and humidity. Colloidal gold test paper generally requires room temperature of 14℃-30℃ to avoid abnormal test results caused by supercooling, overheating or excessive humidity. The antigen test card is taken out and packaged, then dried, flattened and cleaned.
Second, sample collection.
1 and 14 years old or older can take nasal swab samples by themselves. The self-inspector blows his nose with toilet paper first. Carefully unpack the outer package of the nasal swab to avoid touching the swab head by hand, then tilt the head slightly, hold the tail of the swab with one hand, stick to one nostril, and slowly retreat to 1- 1 along the bottom of the lower nasal passage. After 5 cm, the nasal cavity is rotated at least 4 times (the residence time is not less than 15 seconds), and then the same operation is repeated for the other nasal cavity with the same cotton swab.
2, age 2- 14 years old self-study exam should be attended by other adults. When sampling, first blow your nose with toilet paper and then tilt your head slightly. The sampling personnel carefully open the outer package of the nasal swab to avoid touching the swab head with their hands. One hand gently holds the head of the person being collected, and the other hand sticks the swab to one nostril, slowly permeates back to 65438±0cm along the bottom of the lower nasal passage, and then sticks it to the nasal cavity and rotates it for at least 4 times (the residence time is not less than 65438±05s), and then repeats the same operation on the other nasal cavity with the same swab.