How to do antigen self-test? (What about COVID-19 nucleic acid antigen self-test)

Antigen self-test is carried out as follows:

Preparation before antigen self-test

1. Wash your hands.

2. Read the instruction manual of antigen reagent to understand the self-test process and matters needing attention.

3. Check the shelf life and integrity of the reagent.

4. The ambient temperature shall be 14℃ ~ 30℃ to avoid humidity. The antigen test card is unpacked and placed in a flat and clean place.

Sample collection

/kloc-nasal swab sampling can be taken by people over 0/4 years old. Blow your nose with toilet paper first. Carefully open the outer package of the nasal swab to avoid hand contact with the swab head. Then tilt your head slightly, stick a cotton swab on one nostril with the tail of one hand, then slowly permeate back to 1 ~ 1.5 cm along the bottom of the inferior nasal passage, then stick it on the nasal cavity and rotate it for at least 4 times, and then repeat the same operation on the other nasal cavity with the same cotton swab. Those aged 2- 14 should be sampled by other adults.

Antigen test

1. According to the reagent instructions, put the nasal swab into the sampling tube immediately after collecting the sample, rotate the swab head in the preservation solution and mix evenly for at least 30 seconds, and squeeze the swab head through the outer wall of the sampling tube for at least 5 times by hand to ensure that the sample is fully eluted in the sampling tube.

2. Squeeze the liquid from the cotton swab head through the outer wall of the sampling tube by hand, and then discard the cotton swab. After covering the sampling tube, drop the liquid vertically into the sample hole of the detection card.

3. According to the reagent instructions, wait for a certain time to explain the results.

Positive results: both "C" and "T" show red or purple bands, and the color of the bands at "T" can be dark or light, which are all positive results.

Negative result: red or purple bands are displayed at "C", but no bands are displayed at "T".

Invalid result: Red or purple stripes are not displayed at "C" regardless of whether stripes are displayed at "T". The result is invalid, so you need to take the test paper again for a second interview.