Syphilis Antibody Rapid Test Kit (Latex Chromatography Assay) is an in vitro diagnostic test for the qualitative detection of Treponema pallidum antibodies in human serum, plasma or whole blood (venous and fingerstick/earlobe) specimens. The only way to definitively diagnose syphilis is through testing, which can help diagnose syphilis in its earliest stages, when it is easiest to treat.