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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).
Nontreponemal tests are screening tests, very rapid and relatively simple, but need to be confirmed by treponemal tests. [1] 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 ...
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 ...
The Wassermann test or Wassermann reaction (WR) [1] is an antibody test for syphilis, named after the bacteriologist August Paul von Wassermann, based on complement fixation. It was the first blood test for syphilis and the first in the nontreponemal test (NTT) category. Newer NTTs, such as the RPR and VDRL tests, have mostly replaced it.
Another method would also be through the screening test and serology. Serology includes two types of antibody test: Nontreponemal antibody test and Treponemal antibody test (specific test). [ 12 ] The Nontreponemal antibody test screens with VDRL (Venereal Disease Research Lab) and RPR ( Rapid Plasma Reagin ).
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 .
From there, you should know what your results actually mean, including a faint positive line, and when to take another test or get a more sensitive COVID-19 test from your doctor to clear things up.
In the mother, a serologic diagnosis of syphilis is made using a nontreponemal test for syphilis such as the Venereal Disease Research Laboratory test or Rapid plasma reagin (RPR) followed by a treponemal test, such as the Treponema pallidum particle agglutination assay (TP-PA) (the sequence of testing may be reversed with a treponemal test ...