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  2. Venereal Disease Research Laboratory test - Wikipedia

    en.wikipedia.org/wiki/Venereal_Disease_Research...

    The rapid plasma reagin (RPR) test uses the same antigen as the VDRL, but in that test, it has been bound to several other molecules, including a carbon particle to allow visualization of the flocculation reaction without the need of a microscope. Many other medical conditions can produce false positive results, including some viruses ...

  3. Nontreponemal tests for syphilis - Wikipedia

    en.wikipedia.org/wiki/Nontreponemal_tests_for...

    Centers for Disease Control and Prevention (CDC)-approved standard tests include the VDRL test (a slide test), the rapid plasma reagin (RPR) test (a card test), the unheated serum reagin (USR) test, and the toluidine red unheated serum test (TRUST). [2] These have mostly replaced the first nontreponemal test, the Wassermann test. [citation needed]

  4. Rapid plasma reagin - Wikipedia

    en.wikipedia.org/wiki/Rapid_plasma_reagin

    The rapid plasma reagin test (RPR test or RPR titer) is a type of rapid diagnostic test that looks for non-specific antibodies in the blood of the patient that may indicate an infection by syphilis or related non-venereal treponematoses. It is one of several nontreponemal tests for syphilis (along with the Wassermann test and the VDRL test).

  5. Wassermann test - Wikipedia

    en.wikipedia.org/wiki/Wassermann_test

    Replacement tests such as the VDRL test and the RPR test, initially based on flocculation techniques (Hinton), have been shown to produce far fewer false positive results. [citation needed] Indeed, the "biologic false positives" of modern tests usually indicate a serious alternate condition, often an autoimmune disease.

  6. Fluorescent treponemal antibody absorption test - Wikipedia

    en.wikipedia.org/wiki/Fluorescent_treponemal...

    The fluorescent treponemal antibody absorption (FTA-ABS) test is a diagnostic test for syphilis.Using antibodies specific for the Treponema pallidum species, such tests would be assumed to be more specific than non-treponemal testing such as VDRL but have been shown repeatedly to be sensitive but not specific for the diagnosis of neurosyphilis in cerebrospinal fluid (CSF).

  7. Treponema pallidum particle agglutination assay - Wikipedia

    en.wikipedia.org/wiki/Treponema_pallidum...

    Fig. 1: Microwells showing positive and negative TPHA test. The Treponema pallidum particle agglutination assay (also called TPPA test) is an indirect agglutination assay used for detection and titration of antibodies against the causative agent of syphilis, Treponema pallidum subspecies pallidum. It also detects other treponematoses. [citation ...

  8. Syphilis - Wikipedia

    en.wikipedia.org/wiki/Syphilis

    Nontreponemal tests are used initially and include venereal disease research laboratory (VDRL) and rapid plasma reagin (RPR) tests. False positives on the nontreponemal tests can occur with some viral infections, such as varicella (chickenpox) and measles .

  9. Talk:Venereal Disease Research Laboratory test - Wikipedia

    en.wikipedia.org/wiki/Talk:Venereal_Disease...

    It therefore detects anti-cardiolipin antibodies (IgG, IgM or IgA), visualized through foaming of the test tube fluid, or "flocculation".[citation needed] The rapid plasma reagin (RPR) test uses the same antigen as the VDRL, but in that test, it has been bound to several other molecules, including a carbon particle to allow visualization of the ...