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PCR Test: What It Is, How It Works & Results - Cleveland Clinic
PCR Test A PCR (polymerase chain reaction) test is a lab technique that amplifies (creates more copies) of genetic material (DNA). Healthcare providers can use PCR to test for infectious diseases, …
Testing for COVID-19 | COVID-19 | CDC
Mar 10, 2025 · Nucleic acid amplification tests (NAATs), including PCR tests, are more likely to detect the virus than antigen tests. NAATs tests are the “gold standard” for COVID-19 tests. Your sample …
PCR vs. rapid COVID-19 test: What’s the difference?
May 9, 2025 · The rapid test can’t detect small amounts of the virus or asymptomatic cases as accurately as the PCR test can,” Heather said. So how accurate are home COVID-19 tests? The …