RPR Test: Why Is It Used, What to Expect, and Related Tests - WebMD
A rapid plasma reagin (RPR) test is one of the various tests that screen for a sexually transmitted infection (STI) called syphilis. It is a simple blood test that checks for unique syphilis antibodies. The RPR test can be inconclusive on its own. It's usually followed by other screenings. Syphilis Syphilis is an STI that is typically transmitted through contact with someone's infected sores during unprotected sex. The syphilis bacterium is called treponema pallidum. It enters your body through your mucous membranes or cuts or abrasions on your skin. Syphilis has four stages. Each has its own set of symptoms. If untreated, syphilis can become deadly. Early treatment can cure syphilis completely before symptoms worsen. Symptoms. Your doctor may recommend an RPR test if you begin showing syphilis symptoms after having sex with someone with syphilis. These symptoms include: Sores, called chancres, at the infection site Rashes Fever Swollen lymph nodes Headaches Muscle aches Fatig...