//fpnotebook.com/
Rapid Plasma Reagin
Aka: Rapid Plasma Reagin, RPR
- See Also
- Syphilis
- Syphilis Testing
- Indication
- Syphilis Detection
- Background
- Non-Treponemal Test (Syphilis Serology)
- Efficacy: Test Sensitivity to untreated Syphilis
- Primary Stage (Chancre stage)
- After one week: 30%
- After three weeks: 90%
- Secondary Stage: 100%
- Tertiary Stage: 90%
- Latent Stage: may be unreactive
- Interpretation: Negative
- Normal
- Interpretation: Positive
- See Syphilis False Positive Test
- Syphilis RPR positive test will be returned with titer (e.g. 1:16)
- After treatment, by 6 months, RPR should fall by a factor of 4 (e.g. 1:4)
- On subsequent infection, expect the RPR titer to once again rise