Venereal Disease Research Laboratory test - Wikipedia
There are a number of treponemal-specific tests such as the fluorescent treponemal antibody-absorption (FTA-ABS) test, T. ... "flocculation".[citation needed] The rapid plasma reagin (RPR) test uses the same antigen as the VDRL, but in that test, it has ... Many other medical conditions can produce false positive results, including some viruses (mononucleosis, hepatitis), drugs, ... are more specific for syphilis than non-treponemal tests and in the presence of a positive test, more likely indicate active ...
Nontreponemal tests for syphilis - Wikipedia
... test. Both these test are flocculation type tests that use an antigen-antibody interaction. The complexes remain suspended in ... Because of the issues with false positives, confirmation with a second treponemal test that is specific for T. pallidum ... approved standard tests include the VDRL test (a slide test), the rapid plasma reagin (RPR) test (a card test), the unheated ... Nontreponemal tests are screening tests, very rapid and relatively simple, but need to be confirmed by treponemal tests. ...