Provider-administered swab tests for coronavirus
Molecular tests typically involve inserting a 6-inch long swab into the back of the nasal passage through one nostril and rotating the swab several times for 15 seconds. This process is then repeated through the other nostril. The swab is then inserted into a container and sent to a lab for testing.
Alternative testing methods have recently been introduced, including rapid diagnostic tests that can be analyzed where the sample is collected at point-of-care (e.g., clinic or doctor’s office), and results are available in minutes. There are currently four authorized rapid point-of-care diagnostic tests, including
ID NOW by Abbott,
Xpert Xpress by Cepheid,
Accula by Mesa Biotech, and
Cue COVID-19 Test by Cue Health, Inc.
At-home tests for coronavirus
The FDA has authorized several at-home collection molecular tests, including Pixel by LabCorp and tests by Everlywell and LetsGetChecked, which are available online
here. The test kits contain supplies to collect samples, including a nasal swab which you send back to the lab for testing. Unlike other swab-based tests, these tests use swabs that only need to go as far as the nostril, instead of deeper into the nasal passage.
A study led by the UnitedHealth Group suggests that results from self-collected swab tests are similar in accuracy to provider-collected swab tests.
Several companies,
including Hims and Vault Healthare now offering at-home collection tests online using a
saliva test developed by Rutgers’ RUCDR Infinite Biologics. Test kits include a collection device to collect your saliva (instead of deep nose or throat swabs) and the sample is then mailed to the lab for processing.
As with all authorized at-home collection tests, you must qualify for testing based on certain criteria like your location, symptoms, potential exposure, and risk. Vault Health’s test, which is available
here, also requires a video consultation with a practitioner to supervise sample collection.
The authorization of at-home collection tests is a big step forward as FDA works with test developers in this space. At-home collection tests can help expand testing, reduce the demand for personal protective equipment (PPE), and minimize frontline healthcare worker exposure. Currently, the FDA
has not authorized any tests to be entirely used and processed at home.
You can read more about at-home testing
here.