NCoV Rapid Ag Test Kit Immunochromatography Negative Result
NCoV Rapid Ag Test Kit Immunochromatography Negative Result
Intended Use
Sample Requirements
Polyester sponge samples with polypropylene rods are recommended for sterile sample collection.
(1) Oropharyngeal specimen collection method: the collection head is slightly tilted, and both sides of the pharyngeal tonsils are exposed in the mouth.The pharyngeal tonsils were wiped at least three times along the root of the tongue, and then the posterior pharynx up and down at least three times with a cotton swab.
(2) Method of nasopharyngeal specimens: The sampler gently holds the subject's head with one hand and the swab with the other hand.Insert the swab into the nostrils and slowly along the bottom of the lower nose tract.Arc, do not force too hard, to avoid bleeding due to trauma.When the tip of the sign reaches the posterior wall of the nasopharyngeal cavity, rotate gently once (if it is a reflex cough), and then slowly remove the sign.
(3) Sample treatment: the collected samples shall be treated with the sample buffer provided by the kit as soon as possible (if not treated immediately, stored in dry, sterilized and sealed plastic tubes) and stored at 2℃ ~ 8℃ for no more than 24 hours ~ -70℃ for a long time, but repeated freezing and thawing should be avoided.
Test Method
All reagents were returned to room temperature prior to testing.Testing shall be performed at room temperature.
I. Sample extraction (see Figure 1)
After 400L (~10 drops) of sample buffer was added vertically to the sample extraction tube, the sample was inserted into the tube and rotated against the inner wall about 10 times so that the sample was dissolved in as much solution as possible.
2. Sample along the inner wall of the extraction tube, leave as much liquid as possible inside the tube, then remove and discard it.
3. Cover with the dropper.
II test procedure (see Figure 2)
1. Remove the test card from the sealed bag.
2. Add 2 drops (~80L) of the treated sample extract to the sample hole of the test card and start the timer.
3. Place the test card at room temperature for 15 minutes and read the results.The results were not valid after 20 min.
Interpretation of test results
Schematic diagram of the card result judgment:
Invalid (1) Results: the quality control line (line C) has no reaction line, and the test is invalid, so the test is repeated.
(2) Negative result: red ribbon, quality control line (line C line) coloring.
(3) Positive result: two red bands, test line (T line) and quality control line (C line) are all colored.
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