COVID-19 may be diagnosed with a nasal swab PCR test, which is a precise and reliable diagnostic. The COVID-19 polymerase chain reaction (PCR) test looks for genetic material (ribonucleic acid or RNA) of SARS-CoV-2, the virus that causes COVID-19, in your upper respiratory samples. Scientists employ polymerase chain reaction (PCR) technology to turn minute quantities of RNA from specimens into deoxyribonucleic acid (DNA), which is then repeated until SARS-CoV-2 is detected if it exists. Since being approved for use in February 2020, the PCR test has been the gold standard for diagnosing COVID-19. It is precise and trustworthy.
