Diagnostics·Diagnostics
COVID-19 PCR test
Informed by recognized medical guidance
Overview
A COVID-19 PCR test is a laboratory test that looks for the genetic material of the virus that causes COVID-19. It is one of the most accurate ways to tell if you currently have the infection. A swab is gently inserted into your nose or throat to collect a sample.
Key facts
- PCR stands for polymerase chain reaction, a method used to amplify tiny bits of viral RNA so they can be detected.
- The test is highly accurate and is often used to confirm COVID-19 when you have symptoms or were exposed.
- Results usually come back in 1 to 2 days, though some places offer rapid PCR testing within hours.
Yes, COVID-19 PCR tests have been widely used since the pandemic began. They are a standard tool in diagnosing COVID-19 and monitoring outbreaks.
Anyone may need a COVID-19 PCR test if they develop symptoms, have been in close contact with someone who tested positive, or are required to test for travel, work, or healthcare reasons.