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  2. Nontreponemal tests for syphilis - Wikipedia

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

    Additionally these tests may show false-negative when the patient's antibody titer is very high due to a hook effect (also called a prozone effect). Because of the issues with false positives, confirmation with a second treponemal test that is specific for T. pallidum antibodies is recommended. [5] [6]

  3. 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).

  4. Treponema pallidum particle agglutination assay - Wikipedia

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

    This is a type of specific treponemal test for syphilis. [citation needed] A similar specific treponemal test for syphilis is the Treponema pallidum hemagglutination assay or TPHA. TPHA is an indirect hemagglutination assay used for the detection and titration of antibodies against the causative agent of syphilis, Treponema pallidum subspecies ...

  5. 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).

  6. Venereal Disease Research Laboratory test - Wikipedia

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

    Treponema pallidum particle agglutination assay and the Toluidine red unheated serum test (TRUST), which may be used to confirm a positive VDRL result, are more specific for syphilis than non-treponemal tests and in the presence of a positive test, more likely indicate active infection.

  7. US FDA approves first at-home syphilis test - AOL

    www.aol.com/news/us-fda-approves-first-home...

    Developed by privately held NOWDiagnostics, the antibody test helps identify current or past infection and provides a result in about 15 minutes. However, the regulator added that the results from ...

  8. Syphilis - Wikipedia

    en.wikipedia.org/wiki/Syphilis

    Syphilis; Electron micrograph of Treponema pallidum bacteria: Specialty: Infectious disease: Symptoms: Firm, painless, non-itchy skin ulcer [1] Causes: Treponema pallidum, usually spread by sex [1] Diagnostic method: Blood tests, dark field microscopy of infected fluid [2] [3] Differential diagnosis: Many other diseases [2] Prevention

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