GoToKnow™ COVID-19 Antigen Rapid Test
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Product in development. Please notify me when available.
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Results are for the identification of the SARS-CoV-2 nucleocapsid protein antigen. The antigen is generally detectable in anterior nasal swab specimens during the acute phase of infection.
The GoToKnow™ COVID-19 Antigen Rapid Test is a lateral flow assay intended for the qualitative detection of nucleocapsid protein antigen from SARS-CoV-2.
This test is authorized for non-prescription home use with self-collected anterior nasal (nares) swab samples from individuals aged 15 years or older with symptoms of COVID-19 within the first 7 days of symptom onset. This test is also authorized for non-prescription home use with adult-collected anterior nasal (nares) swab samples from individuals aged 2 years or older with symptoms of COVID-19 within the first 7 days of symptom onset.
This test is also authorized for non-prescription home use with self-collected anterior nasal (nares) swab samples from individuals aged 15 years or older, or adult-collected anterior nasal (nares) swab samples from individuals aged 2 years or older, with or without symptoms or other epidemiological reasons to suspect COVID-19 when tested twice over three days with at least 24 hours (and no more than 48 hours) between tests.
Each kit contains the following components: COVID-19 Test Card(s), Nasal Swab(s), Tube(s), User Instruction for Use.
This product has not been FDA cleared or approved; but has been authorized by FDA under an EUA; This product has been authorized only for the detection of proteins from SARS- CoV-2, not for any other viruses or pathogens; and, The emergency use of this product is only authorized for the duration of the declaration that circumstances exist justifying the authorization of emergency use of in vitro diagnostics for detection and/or diagnosis of COVID-19 under Section 564(b)(1) of the Federal Food, Drug and Cosmetic Act, 21 U.S.C. § 360bbb-3(b)(1), unless the declaration is terminated or authorization is revoked sooner.
How does the GoToKnow™ COVID-19 Antigen Rapid Test work?
The GoToKnow™ COVID-19 Antigen Rapid Test is designed to detect proteins of the SARS-CoV-2 virus (the virus that causes Covid-19) in 15 minutes from a nasal swab.
Will the GoToKnow™ COVID-19 Antigen Rapid Test detect COVID-19 variants?
The GoToKnow™ COVID-19 Antigen Rapid Test has been tested using several heat inactivated variant strains and was able to detect the mutations. The clinical performance has not been established in all circulating variants but is anticipated to be reflective of the prevalent variants in circulation at the time and location of the clinical evaluation. Performance at the time of testing may vary depending on the variants circulating, including newly emerging strains of SARS-CoV-2 and their prevalence, which change over time.
What are the differences between a COVID-19 antigen, molecular and antibody test?
Viral tests, sometimes called diagnostic tests, can detect if you have SARS-CoV-2, the virus that caused COVID-19. There are two types of diagnostic tests: molecular and antigen. A molecular test (commonly referred to as a PCR test) is designed to detect genomic material from the virus. Antigen tests (sometimes referred to as paid tests) detect specific proteins on the surface of the virus.
Antibody tests look for antibodies in your blood that fight off the virus. Antibodies can be found in your blood from either a past infection or vaccination. An antibody test cannot tell you if you currently have COVID-19.
For more information on COVID-19 testing, please see the following link: https://www.fda.gov/consumers/consumer-updates/coronavirus-disease-2019-testing-basics
Is this GoToKnow™ COVID-19 Antigen Rapid Test Kit FDA approved or cleared?
No. This test is not currently proved or cleared by the United States FDA. FDA can issue an Emergency Use Authorization (EUA) when certain criteria are met, which includes that there are no adequate, approved, available alternatives. The EUA for this test is supported by the Secretary of Health and Human Service’s (HHS’s) declaration that circumstances exist to justify emergency use of in vitro diagnostics for the detection and/or diagnosis of the virus that causes COVID-19. This EUA will remain in effect (meaning this test can be used) for the duration of the COVID-19 declaration justifying emergency of IVDs, unless it is terminated, or authorization is revoked by FDA (after which the test may no longer be used).
What is the age range for the test?
This test is authorized for nonprescription home use with self-collected (unobserved) anterior nasal swab specimens from individuals aged 15 years and older or with adult-collected anterior nasal swab samples from individuals aged 2 years or older.
What is serial testing?
Serial testing is when a single person is tested for COVID-19 more than once. Because antigen tests may be less sensitive than molecular COVID-19 tests and false results may occur, repeat testing may identify individuals with COVID-19 more reliably than a single test. By testing more frequently, it may be possible to identify cases of COVID-19 and reduce spread of infection.
Do I always need to perform two tests?
If you have COVID-19 symptoms and are within the first 7 days of symptom onset, you can use one single test of the GoToKnow™ Antigen Rapid Test. You may also choose to perform two tests if you wish. By testing more frequently, you may detect COVID-19 more quickly and reduce spread of infection.
Can this test be used as proof of a negative COVID-19 test for travel?
Learn more about CDC’s COVID-19 testing requirement for international travel to the United Stateshere.
https://www.cdc.gov/coronavirus/2019-ncov/travelers/testing-international-air-travelers.html (link connects to this)
For other conditions such as a cruise, entry to a foreign country, private events, etc., it will depend on the specific organization’s requirements if a verified test can be accepted as proof of a negative test.
Will the test work if I don’t have symptoms?
Yes. If you do not have COVID-19 symptoms, you will need to perform two tests over two or three days with at least 24 hours and no more than 48 hours between tests.
Should people who are vaccinated use this test?
Individuals can utilize this test, as needed, regardless of vaccination status.
Is this test covered by insurance?
To determine if you’re eligible for reimbursement, please contact your health insurance provider.
Is a prescription required to perform this test?
You do not need a doctor’s prescription to purchase and perform this test.
How accurate is the GoToKnow™ COVID-19 Antigen Rapid Test?
Based on the results of a clinical study where the GoToKnow™ COVID-19 Antigen Rapid Test was compared to an FDA authorized molecular SARS-CoV-2 test, GoToKnow™ COVID-19 Antigen Rapid Test correctly identified 94.3% of positive specimens and 98.1% of negative specimens.
Additional asymptomatic individuals and individuals beyond the seven days of symptom onset were tested but excluded from the primary performance calculations because they were not included in the intended use. A higher proportion of low positive specimens were observed in these populations, resulting in PPAs between of 85-88% in these individuals.
What does it mean if I have an Inconclusive test result?
An inconclusive result is neither positive nor negative. This result can occur from inadequate sample collection, very early-stage infection, or for patients close to recovery. With an inconclusive result, collecting and testing another sample is recommended.
What does it mean if I have a positive test result?
A positive test result for COVID-19 indicates that antigens from SARS-CoV-2 were detected, and the patient is very likely to be infected with the virus and presumed to be contagious. Test results should always be considered in the context of clinical observations and epidemiological data (such as local prevalence rates and current outbreak/epicenter locations) in making a final diagnosis and patient management decisions. Patient management decisions should be made by a healthcare provider and follow current CDC guidelines.
The GoToKnow™ COVID-19 Antigen Rapid Test has been designed to minimize the likelihood of false positive test results. However, in the event of a false positive result, risks to patients could include the following: a recommendation for isolation of the patient, monitoring of household or other close contacts for symptoms, patient isolation that might limit contact with family or friends and may increase contact with other potentially COVID-19 patients, limits in the ability to work, the delayed diagnosis and treatment for the true infection causing the symptoms, unnecessary prescription of a treatment or therapy, or other unintended adverse effects.
What should I do if my test result is positive?
If your test result is positive with the GoToKnow™ COVID-19 Antigen Rapid Test, you should self-isolate and seek follow-up care with your healthcare provider as additional testing may be necessary. Your healthcare provider may work with you to determine how best to care for you based on your test result(s) along with your medical history, and your symptoms.
The CDC currently recommends several Steps to help prevent the spread of COVID-19 if you are sick, detailed guidance could be found at:
https://www.cdc.gov/coronavirus/2019-ncov/if-you-are-sick/steps-when-sick.html
What does it mean if I have negative test results?
A negative test result means that proteins from SARS-CoV-2 were not present in the specimen above the limit of detection. The amount of virus in a sample may decrease as the duration of illness increases. In symptomatic patients, specimens collected after day 5 of illness may be more likely to be negative compared to a RT-PCR assay. Negative results should be treated as presumptive and confirmed with a molecular assay, if necessary, for patient management.
When diagnostic testing is negative, the possibility of a false negative result should be considered in the context of a patient’s recent exposures and the presence of clinical signs and symptoms consistent with COVID-19. The possibility of a false negative result should especially be considered if the patient’s recent exposures or clinical presentation indicate that COVID-19 is likely, and diagnostic tests for other causes of illness (e.g., other respiratory illness) are negative. If COVID-19 is still suspected based on exposure history together with other clinical findings, re-testing or testing with molecular methods should be considered by healthcare providers in consultation with public health authorities.
Risks to a patient of a false negative test result include, delayed or lack of supportive treatment, lack of monitoring of infected individuals and their household or other close contacts for symptoms resulting in increased risk of spread of COVID-19 within the community, or other unintended adverse events.
A negative antigen test should not be the sole basis used to determine if a patient can end isolation precautions. For additional recommendations regarding infection control, refer to CDC’s Discontinuation of Isolation for Persons with COVID-19 Not in Healthcare Settings (Interim Guidance) (see links provided in “Where can I go for updates and more information” section).
The performance of this test was established based on the evaluation of a limited number of clinical specimens collected in between May and October 2021.The clinical performance has not been established in all circulating variants but is anticipated to be reflective of the prevalent variants in circulation at the time and location of the clinical evaluation. Performance at the time of testing may vary depending on the variants circulating, including newly emerging strains of SARS-CoV-2 and their prevalence, which change over time.
What should I do if I have COVID-19 symptoms BUT my test result is negative?
If you test negative and continue to experience COVID-19 like symptoms of fever, cough and/or shortness of breath you should seek follow up care with your healthcare provider. Your healthcare provider may suggest you need another test to determine if you have contracted the virus causing COVID-19. If you are concerned about your COVID-19 status after testing or think you may need follow up testing, please contact your healthcare provider as well.
If you will not have an additional test to determine if you are contagious, the CDC currently recommends that you should stay home until three things have happened:
What does it mean if I have invalid test results?
Invalid result means that the test did not function correctly. You will need to retest with a new test kit.
Can the GoToKnow™ COVID-19 Antigen Rapid Test be used in children under two years old?
No, the test is not authorized for anyone under 2 years of age.
Is the GoToKnow™ COVID-19 Antigen Rapid Test reusable?
No. All the components of GoToKnow™ COVID-19 Antigen Rapid Test Kit are not reusable and can only be used once.
Will the test hurt?
No, It should not hurt if used as directed. The nasal swab is not sharp, but sometimes the swab can feel slightly uncomfortable or tickly. If you feel pain, please stop the test, and seek advice from a healthcare provider.
How far do I need to insert the Nasal Swab?
Gently insert the entire absorbent tip of the swab (usually 1/2 to 3/4 of an inch) into your nostril.
With children, the maximum depth of insertion into the nostril may be less than ¾ of an inch, and you may need to have a second person to hold the child’s head while swabbing.
Why must I swab both nostrils?
In some cases, it has been observed that only one nostril has the detectable virus. Swabbing both nostrils is important because it gives you the best chance of a collecting sufficient sample to generate an accurate result.
Can I perform the test if I don’t have a blocked or runny nose?
Yes. The GoToKnow™ COVID-19 Antigen Rapid Test can be used with or without any noticeable symptoms of COVID-19 (including a blocked or runny nose) or other epidemiological reasons to suspect COVID-19.
How much fluid should I squeeze into the sample port of the Test Card?
3 drops.
Within how much time should the test card be used, after the foil pouch is opened?
Once the Test Card is removed from the pouch, perform the test as soon as possible. Use the Test Card within 1 hour after opening the foil pouch.
Do I have to wait for 15 minutes to read the result?
Yes. After adding the sample to the sample port, do NOT confirm your result before your 15-minute timer is up. The positive indicating line could take as long as 15 minutes to appear, so you may get an incorrect result (false negative) if you do not wait for 15 minutes.
What are the known and potential benefits and risks for the home test?
Potential risks include:
Potential benefits include:
Who is considered high risk for severe disease?
The following people are considered high risk for severe disease:
People may be at increased risk due to the following conditions:
Can I injure myself using the swab?
The Swab is sterile and safe to use as directed. Gently insert the entire absorbent tip of the swab (usually 1/2 to 3/4 of an inch) into your nostril (Note: With children, you may not need to insert the swab as far into the nostril.). You may experience some discomfort when swabbing your nose, but this is to be expected. Do not insert the Swab any further if you experience sharp pain.
I have a nosebleed after swabbing my nose. What should I do?
In the unlikely event your nose starts bleeding, do not insert the Swab again. Apply pressure to your nose until the bleeding stops and consult a healthcare professional.
I inserted the nasal swab into the tube before I swabbed my nose. Can I re-use the swab?
No. You will need to obtain a new test kit. The swab with Extraction Reagent cannot be used for sample collection, the Extraction Reagent contains harmful chemicals (refer to Hazardous Ingredients for Reagent Solution part of Instructions for Use).
What should I do if some of the liquid splashes onto my phone or anywhere else except the sampling port?
The liquid should be wiped off your phone or surface immediately as per the recommendations of your phone manufacturer. Please note that you may not have sufficient liquid remaining to perform the test and may need to obtain a new test kit.
I received an invalid result when I performed the test and I need to use a new test kit. Can I use the same sample I used in the previous test?
No, do not reuse any test components. Please obtain a new test kit and perform a new test.
Disclaimer: If you’re currently experiencing COVID-19 symptoms, please contact your primary care physician (PCP) for immediate guidance.
GoToKnow™ COVID-19 Antigen Rapid Test may take several days to ship. This is not a PCR test and not valid for travel. The manufacturer of the GoToKnow™ COVID-19 Antigen Rapid Test requires test kits be stored at temperatures between 36o and 86oF (2o – 30oC). Any extended exposure of the test kit to temperatures beyond this range may affect quality of test results. If you have ordered home delivery of the test kit and expect temperatures in your area to be outside of this range at time of delivery, it is recommended that you arrange for someone to be home at or near time of delivery to receive the test kit.
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