Nontreponemal tests are quantitative (reported as titers). A fourfold change in titer, equivalent to a change of two dilutions (e.g., from 1:16 to 1:4, or from 1:8 to 1:32), is considered a clinically …

RPR and VDRL results should have a quantitative titer reported with them (1:2, 1:4, 1:8, etc.). A reactive RPR must also have a reactive treponemal test to be considered a case of syphilis as false positives …

The traditional syphilis testing algorithm begins with the RPR (nontreponemal) test with positive samples reflexing to RPR titer and treponemal antibody testing. Interpretation of results obtained must take …

Jan 16, 2024 · VDRL and RPR are equally valid assays; however, quantitative results from the two tests cannot be compared directly with each other because the methods are different, and RPR titers …

May 7, 2025 · A rapid plasma reagin (RPR) test screens you for syphilis, a sexually transmitted infection (STI). It's a simple blood test that checks for unique syphilis antibodies.

RPR - Rapid Plasma Reagin – A type of non-treponemal test that looks for antigens that syphilis causes in the blood stream. The results for this test can be qualitative (reactive or non-reactive) or …

Test Information: Quantitative RPR test with antibody titer. May be used to monitor response to therapy. Ordering Note: This test should be ordered for patients with a known history of syphilis. For …

Dec 12, 2022 · A rapid plasma reagin (RPR) test is a blood test used to screen you for syphilis. It works by detecting the nonspecific antibodies that your body produces while fighting the infection.

Normal range/expected value (s) for a specific disease state. May also include abnormal ranges. May include disease information, patient result explanation, recommendations, or details of testing. If …

Nontreponemal antibodies are generally detected by the rapid plasma reagin (RPR) assay, which is typically positive during current infection and negative following treatment or during late/latent forms …