What is the difference between rapid tests and COVID-19 PCR?

If you're not feeling well or have recently been in close contact with someone with COVID-19, you're probably considering your COVID-19 testing options. And if so, chances are you're also quite confused with all the different types of tests available. Terms like PCR, rapid test, and antibody test pop up on websites that talk about COVID-19, and it can be hard to figure out what they mean and which one is right for you. In this article, we aim to explain the differences between the two most common tests for diagnosing COVID-19: rapid antigen tests and polymerase chain reaction (PCR) tests.

Rapid antigen tests

A rapid antigen test can be administered to people with or without symptoms of COVID-19. This test involves collecting secretions from the nose and throat via a nasopharyngeal swab and then examining them for protein fragments specific to the COVID-19 virus. Although these tests provide quick results, within 15 minutes, they are generally considered less accurate than PCR tests. It's common to get a false negative (a result that says someone doesn't have coronavirus when they really do) or a false positive (a result that says someone has coronavirus when they really do). she really doesn't have one). If you are not feeling well and have received a negative rapid test, you may wish to receive the PCR test for further confirmation. However, when given when a person is at the height of their infection, rapid antigen tests generally provide accurate results because that is when virus levels in the body are highest.

PCR tests

PCR tests are similar to rapid tests in several ways, as they can be given to people with or without symptoms and are performed using a nasopharyngeal swab. But that's where the similarities end.

PCR tests are considered the gold standard for COVID-19 screening. In fact, if you've ever been asked to show proof of a COVID-19 test, you've been asked to provide PCR test results. These tests provide more accurate results than rapid tests, and that's because they use the polymerase chain reaction (PCR) to identify the viral genetic material of COVID-19. This genetic material can be detected while a person is actively infected and also after an acute illness.

The downside of PCR tests, of course, is that results aren't as quick as rapid tests. The general schedule is three to seven days, although it may be longer during peak periods.

COVID-19 Testing at TIB Diagnostics

TIB Diagnostics is here to help residents of Massachusetts, Connecticut, and New York who need a COVID-19 test. We offer rapid and PCR testing at all of our locations, and we can help you determine the best option for your needs during a telemedicine assessment.

To learn more about our COVID-19 testing services, contact TIB Diagnostics today or read more here.