PCR means polymerase chain reaction. It’s a test to detect genetic material from a specific organism, such as a virus. HPLC Blood Test near me detects the presence of a virus if you have the virus at the time of the test. The test could also detect fragments of the virus even after you are no longer infected. The hplc blood test is the most dependable and secure way of diagnosing COVID-19. The Covid-19 hplc blood test is so sensitive, it can detect very small amounts of virus material.