Reverse Sequence Syphilis Screening and Discordant Results in Pregnancy.

Williams, Jessica E P; Bazan, José A; Turner, Abigail Norris; Thung, Stephen F; Hanlon, Cory; Pettus, Tanisha R; Sánchez, Pablo J · J Pediatr · 2020

retrospective_cohort · Level III

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Abstract

A "reverse sequence syphilis screening" algorithm is widely used for syphilis testing. This retrospective study showed that most (65%) pregnant women with discordant screening results (treponemal multiplex flow immunoassay IgG+/rapid plasma reagin-) had a nonreactive confirmatory Treponema pallidum-particle agglutination assay, likely indicative of a false-positive reaction.

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