Dewei Medical Equipment Co., Ltd |
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Colloidal Gold Assay
² Fast: 15 Minutes
² Easy: One Step
² Convenient: Nasopharyngeal / Nasal swab sample collection
² Cheap: Lower cost with high efficiency
INTEND USE OF 2019-NCOV RAPI TEST
The rapid test kit is used for qualitative determination of novel coronavirus (SARS-CcV-2) antigen in human nasal swab samples in vitro.. This kit is offered to clinical laboratories and healthcare workers for point-of-care testing, and not for at home testing, in compliance with Section IV.D. of the FDA’s Policy for COVID-19 Diagnostic Test. Single Package could be home used.
MAIN COMPONENTS OF 2019-NCOV RAPI TEST
• Rapid Test Cassette.
• Extraction Tube.
• Extraction Reagent.
• Swab.
STORAGE & STABILITY OF 2019-NCOV RAPI TEST
• Store at 39 ~ 86 º F (4 ~ 30 º C) in the sealed pouch up to the expiration date.
• Keep away from direct sunlight, moisture and heat.
• DO NOT FREEZE.
HOW TO PERFORM THIS RAPID TEST KIT?
1. Remove a Test Device from the foil pouch by tearing at the notch and place it on a level surface.
2. Holding Extraction Reagent bottle vertically, add buffer to the Extraction tube.
3. Insert the nasopharyngeal (and oropharyngeal) swab sample(s) into the extraction solution, then, mix the swab 10 times.
4. Remove the swabs while pressing against the solution tube in order to extract most of the specimen
5. Place the dropper cap and drop 3 drops (60~70μl) into the sample well.
6. Read the result in 10-15 minutes. Do not read results after more than 20 minutes.
Something you need to learn about:
What is the difference between an antigen test and a molecular test?
An antigen test detects specific proteins on the surface of the virus. These tests are quicker and less expensive, but have a higher chance of missing an active infection, according to the FDA.
A molecular (PCR or polymerase chain reaction) test detects the virus’s genetic material. These tests require a more complex technology to get results, and it usually takes a day or two to get those results (depending on lab capacity, results may take up to a week).
If an antigen test shows a negative result and you have reason to believe you may have the virus (because of symptoms or exposure), your doctor may order a molecular test to confirm the results.
Who must be tested for COVID-19?
As per the Minister’s Directive: COVID-19: Long-Term Care Home
Surveillance Testing and Access to Homes (Minister’s Directive)
effective January 8, 2021, all staff, student placement and
volunteers working in long-term care homes must be tested regularly
in accordance with the Minister’s Directive, unless the exception
for individuals who have previously had laboratory confirmed
COVID-19 applies. The testing requirements in the Minister’s
Directive include all individuals working in long-term care homes
who are: • Staff as defined in the Long-Term Care Homes Act, 2007 •
Volunteers as defined in the Long-Term Care Homes Act, 2007 •
Student placement, meaning any person working in the long-term care
home as part of a clinical placement requirement of an educational
program of a college or university, and who does not meet the
definition of “staff” or “volunteer” under the Long-Term Care Homes
Act, 2007. The Minister’s Directive also includes additional
testing and documentation requirements for general visitors,
caregivers and support workers.
Which tests are more accurate?
No test is 100% accurate, but the molecular tests are considered to
be more accurate than the antigen tests, according to available
research.
According to the FDA, an antigen test cannot “definitively rule out
active coronavirus infection,” but positive results are “highly
accurate” (negative results may require a confirmation test).
Harvard Medical School wrote in August that the reported rate of
false negatives with molecular testing is as low as 2% and as high
as 37%. A molecular test using a deep nasal swab will have fewer
false negative results than samples from throat swabs or saliva,
they say.
For antigen testing, Harvard noted that the reported rate of false
negative results can be as high as 50%, but that the FDA has
granted emergency use authorization for a more accurate antigen
test.
In general, some of the issues that may affect the accuracy of a
test include ineffective swabbing, contamination or mishandling of
the sample, or problems with the testing chemicals, according to
the FDA.
When should you perform Dewei COVID-19 Ag Rapid Test?
The COVID-19 Ag Rapid test should NOT be used for diagnosis of COVID-19 infection. Any individual who is symptomatic or a contact of a confirmed case should be directed to their healthcare provider, an assessment centre, or participating licensed community lab to seek PCR testing.