Result Interpretation of RPR Test Positive test:Presence of characteristic antigen-antibody clumps (black) in the center or the periphery of the test circle indicate positive RPR test. Negative test:Absence of antigen-antibody clumps. Indicated by slight roughness and no aggregates. All reactive seru...
Quantitative Test (Titration) Titer Undiluted Reactive 1:4 1:2 Reactive 1:4 1:4 1:8 1:16 Reactive Nonreactive Nonreactive INTERPRETATION OF RESULTS Flocculation of RPR Antigen which appears as black clumps against the white background of the card indicates a Reactive (R) specimen. Slight but...
Conclusion The introduction of automated RPR assays for syphilis could help expediting syphilis testing, reducing workload and interpretation related errors. However, further testing is needed to establish reproducibility and full titer range validation relative to manual RPR.M Shukla...