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The Venereal Disease Research Laboratory test (VDRL) is a blood test for syphilis and related non-venereal treponematoses that was developed by the eponymous US laboratory. The VDRL test is used to screen for syphilis (it has high sensitivity ), whereas other, more specific tests are used to diagnose the disease.
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).
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).
This reaction is the foundation of “nontreponemal” assays such as the VDRL (Venereal Disease Research Laboratory) test and Rapid Plasma Reagin (RPR) test. Both these test are flocculation type tests that use an antigen-antibody interaction. The complexes remain suspended in solution and therefore visible due to the lipid based antigens.
Common serum studies to diagnose syphilis include the rapid plasma reagin and the Venereal Disease Research Laboratory (VDRL) test. To diagnose neurosyphilis, a clinical history, physical examination, and cerebrospinal fluid (CSF) analysis are required. Lumbar puncture ("spinal tap") is the procedure to obtain CSF. The VDRL test of the CSF is a ...
Not all these disease are venereal; it has been recommended that a careful explanation of this fact be included with test results. [3] A variety of methods exist to adsorb these antibodies from the test sample before hemagglutination. [citation needed]
They include the venereal disease research laboratory (VDRL; requires microscopy) and rapid plasma reagin (RPR; naked-eye result) tests, both of which flocculate patient-derived antibodies with antigens. [2] Serological tests cannot distinguish yaws from the closely related syphilis; [2] no test distinguishing yaws from syphilis is widely ...
The antibody test was developed by Wassermann, Julius Citron, and Albert Neisser at the Robert Koch Institute for Infectious Diseases in 1906. [ 3 ] [ 4 ] The test was a growth from the work of Bordet and Gengou on complementing-fixation reaction, published in 1901, and the positive reaction is sometimes called the Bordet-Gengou-Wassermann ...