Results and Accuracy

Flowflex COVID-19 Antigen Home Test

How to interpret the results?

Please refer to your package insert on how to use this test.

What do the two red lines on the cassette mean after I complete the test?

If both the control line (C) and test line (T) appear, even if the line on the test line (T) is very faint, this means that you have a positive test result, because antigens from COVID-19 were detected, and it is very likely you currently have COVID-19. Please refer to the package insert for more information.

What does it mean if I have a positive test result?

A positive test result means that antigens from COVID-19 were detected and it is very likely you currently have COVID-19. There is a very small chance that this test can give a positive result that is wrong (a false-positive result).

If you test positive you should self-isolate at home per CDC recommendations to stop spreading the virus to others. Please consult the CDC recommendations regarding self-isolation at www.cdc.gov/coronavirus. Seek follow-up care with your healthcare provider immediately. Your healthcare provider will work with you to determine how best to care for you based on your test result(s), medical history and symptoms.

What does it mean if I have a negative test result?

A negative test result indicates no antigens for COVID-19 were detected. It is possible for this test to give a negative result that is incorrect (a false-negative result) in some people with COVID-19. Negative results are presumptive and may need to be confirmed with a molecular test. This means that you could possibly still have COVID-19 even though the test is negative.

If you test negative and continue to experience symptoms of fever, cough and/or shortness of breath you should seek follow-up care with your healthcare provider immediately. 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 infection status after testing or think you may need follow-up testing, please contact your healthcare provider.

What does it mean to have an invalid result?

An invalid test result indicates that not enough specimen volume was collected or incorrect operation are the likely reasons for an invalid result. Please review the instructions again and repeat the test with a new cassette. If the problem persists, call (800) 838-9502 for assistance.

What is a false-positive and a false-negative test result?

A false positive is a test result that indicates a person has a specific disease or condition when the person actually does not have the disease or condition. A false-negative test result indicates a person does not have a specific disease or condition when the person actually does have the disease or condition. Incorrect specimen collection and sample preparation can result in false-negative and false-positive test results. Therefore, before you begin the test, it is very important to read the package insert provided in the test package and follow the instructions.

How accurate is this test?

The performance of the Flowflex COVID-19 Antigen Home Test was established in an all-comers clinical study conducted between March 2021 and May 2021 with 172 nasal swabs self-collected or pair-collected by another study participant from 108 individual symptomatic patients (within 7 days of onset) suspected of COVID-19 and 64 asymptomatic patients. All subjects were screened for the presence or absence of COVID-19 symptoms within two weeks of study enrollment. The Flowflex COVID-19 Antigen Home Test was compared to an FDA authorized molecular SARS-CoV-2 test. The Flowflex COVID-19 Antigen Home Test correctly identified 93% of positive specimens and 100% of negative specimens.