The PCR typically relies on lab testing and is still considered the “gold standard” for accuracy.
The rapid tests are commonlyat-home tests, with new options that have made testing easier.
In March 2024, this program was suspended.
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This article discusses the types of COVID tests and how they are used.
This process is called amplification.
Amplifying the genetic material makes detecting even the smallest amount of a virus easy.
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These tests look for nucleic acid from the virus instead of antigen.
They can also produce results within minutes.
How to Use a Rapid Test
These are general instructions on COVID rapid test use.
Rapid Test
There is no right or wrong answer when it comes to which COVID-19 test is best.
Both PCR and antigen testing use samples of cells collected from your nose, mouth, or throat.
PCR sample collections can be done at home but have to be sent to a lab for results.
Rapid antigen tests can be done completely at home.
When Should You Test?
When you should test will depend on whether or not you are experiencing COVID-19 symptoms.
If you have COVID symptoms:Take a PCR test if you plan to use only one test.
The same limitations and next-test recommendations apply (i.e., a negative antigen test is less reliable).
If a second antigen test is negative after 48 hours, wait another 48 hours and test again.
For people testingafter a COVID infection, the CDC recommends antigen tests.
People may choose take a COVID test before traveling, or attending family gatherings and public events.
Where to Find a Test
There are several ways to access a COVID-19 test.
They include:
Check with your healthcare provider about COVID tests, too.
They may offer testing, including antigen and PCR tests.
If you need immediate results, a rapid antigen test might be the best option.
If you have questions about COVID-19 testing, symptoms, or treatment, talk to your healthcare provider.
For the most recent updates on COVID-19, visit ourcoronavirus news page.
Centers for Disease Control and Prevention.Testing for COVID-19.
United States Postal Service.At-Home COVID-19 Tests.
Food and Drug Administration.Counterfeit At-Home OTC COVID-19 Diagnostic Tests.
Abbott.COVID-19 Rapid Testing: Every Minute Counts.
U.S. Food and Drug Administration.At-home OTC COVID-19 diagnostic tests.
Infectious Disease Society of America.IDSA Guidelines on the Diagnosis of COVID-19: Antigen Testing.
