nontreponemal and treponemal, will be negative. Treatment in the primary or secondary stage usually results in a rapid decline in the RPR antibody titer, frequently to non-reactive in 6-18 months. Treatment given in the tertiary stage
All reactive serum requiresserial dilutionto estimate antibody titer. The titre is reported as the reciprocal of the highest dilution, which shows a positive test result. When the quantitative RPR card test is performed on patients with syphilis, a fourfold rise in titer in a repeat specimen may...
a quantitative titer test will then be performed to determine the actual concentration of antibodies in the blood sample. If the titer returns a ratio of 1:4 or higher, the CDC then recommends doing aT. Padillum testbecause both types of tests are needed to confirm an active syphilis infecti...
pallidum in both tests, although one sample was reactive only at the 1:2 dilution in the RPR and its TPHA titer was 1:640. Six samples were only reactive for the TPHA test, while four were non reactive in both tests. The FTA-ABS was performed in these four samples and it was non ...
结果:观察组血清RPR滴度<1:8者所占比例为95.12% (39/41),高于对照组62.50% (25/40),差异具有统计学意义(P<0.05);观察组不良妊娠结局发生率为7.32% (3/41),低于对照组25.00% (10/40);足月儿所占比例为92.68%(38/41),高于对照组75.00%(30/40),差异具有统计学意义(P<0.05);观察组新生儿不良结局...
(before chancre formation) will usually completely suppress antibody formation and all serological tests, nontreponemal and treponemal, will be negative. Treatment in the primary or secondary stage usually results in a rapid decline in the RPR antibody titer, frequently to non-reactive in 6-18 ...
as: (1) confirmed proven or highly probable; (2) possible; or (3) less likely. 2.2. Statistical Analysis We assumed that the inverse of the RPR titer was proportional to the antibody concentration. The data were summarized using the number (n) and percentage for binary variables and median...