Following nationwide reports of shortages and escalating case rates, the U.S. Food and Drug Administration has granted emergency use authorization to a new handful of at-home COVID-19 tests.

Several at-home quick antigen and polymerase chain reaction (PCR) COVID-19 tests, which are the two types of tests generally offered at official testing sites, have been approved by the FDA.

You can search the name on the site's antigen diagnostic testing page for rapid tests, or the molecular diagnostic tests page for PCR choices, to see if a test you own or want to buy is FDA-approved.

Here are four FDA-authorized at-home COVID-19 tests you can buy right now:

On/Go At-Home COVID-19 Rapid Antigen Test

When compared to its competitors, On/Go's rapid antigen nasal swab test claims to detect a positive or negative result in just 10 minutes with 95 percent accuracy, according to the company.

You can store and share historical data and use a user-friendly app that provides test instructions, assists you in correctly interpreting sample results, and provides test instructions.

iHealth COVID-19 Rapid Antigen Test

The iHealth at-home COVID-19 test is one of the most economical choices on the market right now, costing $18 for a pack of two tests. A self-administered nasal swab is required, and results can be obtained within 15 minutes. The rapid antigen test is Amazon's best-selling clinical diagnostic test.

According to iHealth, the test is suitable for anyone aged 2 and up; individuals aged 15 and above can collect their own test samples, while children aged 2 to 14 require adult administration. In addition, the brand provides an app that can be used to keep track of results for bigger groups testing at the same time.

DxTerity COVID-19 Saliva At-Home PCR Test Kit

DxTerity is a PCR COVID-19 test that employs a saliva sample, as opposed to the more conventional nasal swab tests. To perform the test, register your kit at DxTerity.com, collect your saliva sample in the tube provided, and ship the sample the same day at a FedEx site. (DxTerity supplies a pre-paid mailing label.) You will receive an email when your findings are ready, which many reviews indicate is between 24 to 48 hours.

BD Veritor Rapid COVID-19 Digital Test Kit

As of this writing, the BD Veritor test is one of the top best-selling clinical diagnostic test kits on Amazon. It has even sold out a couple of times, but it is back in stock (for now).

In order to scan your results, you'll need a smartphone and the free Scanwell Health app, which takes 15 minutes to interpret. The kit has received a five-star rating from over 1,100 buyers.

Beginning this month, Americans will be able to request free at-home tests to be shipped to their houses, according to the Biden administration. In the meantime, major retailers sell COVID-19 test kits for $9.99 to $124.99 per test kit online.