09/14/2021

Understanding the Accuracy of At-home Rapid Tests for COVID-19

Rapid antigen tests, like PCR tests, aren't perfect

Rapid antigen tests, like the polymerase chain reaction (PCR) tests, check for active infection of COVID-19. PCR tests, which require a lab to detect the genetic material of the coronavirus, are the gold standard for COVID-19 testing. Find out the difference between PCR tests and rapid tests here.

But rapid antigen tests are still helpful. Scott Koepsell, MD, PhD, is the medical director of the University of Nebraska Medical Center main testing lab. He says, "Rapid tests are not as accurate as our laboratory PCR testing, but they can be useful in some situations. For example, in a patient with symptoms that are suspicious for COVID-19, a positive rapid antigen test is likely correct. In this case, a very quick answer in just minutes can help that infected person isolate and develop a plan to monitor their symptoms."

Rapid antigen tests, like PCR tests, aren't perfect. If you get a negative result, that doesn't mean you are free of COVID-19. It might mean you tested too early or too late. 

Please select this link to read the complete article from Nebraska Medicine.