As recommended by WHO scientific group, the TPHA test and VDRL or RPR test
can be performed in combination for screening as their activity is complimentary.
the treponemal antibody test result was positive, and the RPR test
result was reactive at a dilution of 1:256.
29) The sensitivity and specificity, positive and negative predictive values, and likelihood ratios (LRs) for a positive (LR+) and negative (LR-) test were calculated to determine the screening performance of the RPR test
Of all 3,664 specimens reactive to the treponemal EIA test and non-reactive with the RPR test
, 69% were tested with a different treponemal test.
In the RPR test
, charcoal particles are added to a cardiolipin antigen suspension.
This might not tell the entire story, however, since none of the females refused to be tested, while 18 percent of the male detainees refused to take an RPR test
, many of whom could have tested reactive.
Ixia's RPR test
suite will enable equipment makers to bring RPR products to market quicker with the ability to simulate multiple node networks within a single port configuration," said Colin Ullyott, SONET product manager for Ixia.
Further testing with FTA-ABS or TP-PA tests on 2,512 of the specimens reactive to the EIA test but nonreactive to the RPR test
found 2,079 (83%) specimens reactive to the second treponemal tests (i.
An RPR test
was also done on site, and all RPR-positive mothers were treated with benzathine penicillin according to national guidelines.