How is a Covid-19 Antigen Rapid Test performed?

Oris uses the nasopharyngeal (nasal swab) method of specimen collection.

  1. You will be asked to tip your head back 70%.
  2. A mini-tip swab with a flexible shaft will be placed through the nostril parallel to the palate until resistance is encountered or the distance is equivalent to that from the ear to the nostril of the patient, indicating contact with the nasopharynx.
  3. The swab will be rolled and gently rubbed.
  4. The swab sample will then be placed in a tube containing liquid.
  5. Three drops of the sample will be placed on the strip.

What do I need to bring with me?

Please bring a goverment-issued photo ID, such as a Driver's License, Passport, or State ID card.

How long does the test take?

The Covid-19 Rapid Test usually takes about 30 minutes, including the 15-minute required wait time after the specimen is placed on the test strip. Please note that time can vary!

What does a positive test mean?

The “gold standard” for clinical diagnostic detection of SARS-CoV-2 remains RT-PCR. Thus, it may be necessary to confirm the results of a rapid antigen test result with a nucleic acid test. When confirming an antigen test result with a RT-PCR test, it is important that the time interval between collection of samples for the two tests is less than two days, and there have not been any opportunities for new exposures between them. If you test positive, you do not need to repeat a test for at least 3 months. In most cases, negative antigen diagnostic test results are considered presumptive. CDC recommends confirming negative antigen test results with an RT-PCR test when the probability is relatively high, especially if the patient is symptomatic or has a known exposure to a person confirmed to have COVID-19.

How do you read the strip?

The strip is read based on the absence or prescence of a colored line in certain control areas, and a change in color in other control areas. Rapid antigen tests perform best when the person is tested in the early stages of infection with SARS-CoV-2 when viral load is generally highest.

Who should get a Covid-19 test?

Diagnostic testing for SARS-CoV-2 is intended to identify a current infection when a person has symptoms consistent with COVID-19, or when a person is asymptomatic but has recent exposure to SARS-CoV-2.

Screening testing is performed to identify persons who may be contagious so that measures can be taken to prevent further transmission. The FDA has granted emergency use authorization (EUA) for antigen tests that can identify SARS-CoV-2. Mild Symptoms: According to the CDC, for mild symptoms or if you test positive for SARS-CoV-2 infection or do not get tested, you should self-isolate for at least 10 days after symptom onset and resolution of fever for at least 24 hours, without the use of fever-reducing medications, and with improvement of other symptoms. If you live with a person at increased risk of severe illness (for example an elderly relative or other individuals with underlying conditions), take special precautions in the home to protect that individual according to CDC guidelines. If your symptoms worsen while you are isolating, or become moderate/severe, such as shortness of breath or severe fatigue, contact your healthcare provider immediately or seek emergency care. Testing Recommended: If you have been in close contact (less than 6 feet for a total of 15 minutes or more) with documented SARS-CoV-2 infection and do not have symptoms.​
  • A single negative test does not mean you will remain negative at any time point after that test.
  • Even if you have a negative test, you should still self-isolate for 14 days.
  • Even if you have a negative test, you should wear a mask, physically distance, avoid crowds and indoor crowded places, wash your hands frequently, and monitor yourself for symptoms.
  • Currently, the rapid antigen tests that have received EUAs from FDA are authorized for diagnostic testing on symptomatic persons within the first five to twelve days of symptom onset.
Always contact your healthcare provider for any questions or healthcare concerns!

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