LABORATORY EXAMINATION
The Treponema pallidum Particle Agglutination Test (TPPA) was
positive, with a value of 22.56 s/co. The Rapid Plasma Reagin Ring Card
Test (RPR) was positive, with a titer of 1:64. Syphilis serological
analysis of her parents, two grandparents, and one grandmother were
negative. However, one grandfather was TPPA and RPR positive, with a
titer of 1:16.