[Sample Requirements]
Polyester sponge samples with PP (polypropylene) rods are recommended for sterile sample collection.
(1) Oropharyngeal specimen collection method: collection head slightly tilted, mouth to expose both sides of pharyngeal tonsils.Wipe the pharyngeal tonsils at least three times along the tongue root, and then wipe the posterior pharynx up and down at least three times with a cotton swab.
(2) Method of collecting nasopharyngeal specimens: The sampler gently holds the head of the recipient with one hand and holds the swab with the other hand.Plug the swab into the nostril and penetrate slowly along the bottom of the lower nasal tract.Arc, do not force too hard, to avoid trauma bleeding.When the tip of the swab reaches the posterior wall of the nasopharyngeal cavity, rotate gently once (if it is a reflex cough) and slowly remove the swab.
(3) Sample treatment: The collected samples shall be treated with the sample buffer provided by the kit as soon as possible (if not processed immediately, the samples shall be stored in dried, sterilized and sealed plastic tubes) and stored at 2℃.~ 8℃, not more than 24 hours; -70℃ is stored for a long time, but repeated freeze and thawing should be avoided.
Test Method
Prior to testing, all reagents were returned to room temperature.Testing shall be performed at room temperature.
I. Sample extraction (see Figure 1)
1. Add 400 L (about 10 drops) of sample buffer vertically to the sample extraction tube and then insert the sample into the tube and rotate against the inner wall about 10 times so that the samples in the solution dissolve as much as possible.
2. Squsample q-tip along the inner wall of the extraction tube to retain as much liquid in the tube as possible from the sample, then removed and discarded.
3. Cover the dropper.
two.Test procedure (see Figure 2)
1. Remove the test card from the sealing bag.
2. Add 2 drops (about 80 L) of the treated sample extract to the sample hole of the test card and start the timer.
3. The results were read after placing the test card for 15 minutes at room temperature.The results were invalid after 20 minutes.
Interpretation of test results
Schematic diagram of the test card result judgment:
Invalid ① result: the quality control line (C line) has no reaction line, the detection is invalid, and the test shall be repeated.
② negative result: red ribbon, quality control line (C line) is in color.
③ positive result: two red bands, detection line (T line) and quality control line (C line) are in color.
