Syphilis STD Testing Example Test Results

STD testing for syphilis is done through a rapid plasma reagin (RPR) blood test.  This type of STD test detects antibodies in the blood that are "non-specific" for the bacteria that causes syphilis, treponema pallidum.  The antigens measured are actually released by cells that have been damaged by the bacteria.  

Syphilis - Rapid Plasma Reagin (RPR) Example Negative Test Results