What does a positive RPR blood test mean?
A positive test result may mean that you have syphilis. If the screening test is positive, the next step is to confirm the diagnosis with a more specific test for syphilis, such as FTA-ABS. The FTA-ABS test will help distinguish between syphilis and other infections or conditions.
When should RPR be tested?
Your doctor may recommend an RPR test if you begin showing syphilis symptoms after having sex with someone with syphilis. These symptoms include: Sores, called chancres, at the infection site. Rashes.
What does RPR reactive abnormal mean?
A reactive RPR test result is considered abnormal because antibodies were detected. This could either indicate a current syphilis infection, or the presence of a past infection that has been successfully treated.
Is RPR always positive?
Among people who are in the secondary (middle) stage of infection, the RPR test result is nearly always positive. The RPR test also can produce false-positive results, suggesting you have syphilis when you actually don’t.
What does RPR titer of 1/4 mean?
The RPR antibody (a non-treponemal or reaginic antibody) titer of 1:4 may be associated with: 1) reinfection syphilis (immunity brought about by previous syphilis infection is incomplete)
What does RPR titer of 1 1 mean?
A confirmed case of syphilis was defined as an RPR titer ≥1:1 with a positive TPHA result.
Can RPR be false positive?
The RPR test also can produce false-positive results, suggesting you have syphilis when you actually don’t. One reason for a false positive is the presence of another disease that produces antibodies similar to the ones produced during a syphilis infection.
Is Vdrl or RPR better?
Specificity was lower for all three CSF nontreponemal tests for diagnosis of symptomatic neurosyphilis. Nonetheless, the specificity of the CSF-RPR for diagnosis of symptomatic disease was significantly better than the CSF-VDRL.
