
PrEP RPR (Diagnosis) with Reflex Titer and Treponema pallidum Antibody, IA
Quest Diagnostics
Sample type: Serum
Requires fasting: No
Phlebotomy required
Details
PrEP RPR (Diagnosis) with Reflex Titer and Treponema pallidum Antibody, IA - RPR is a nontreponemal (lipoidal antigen) test used to screen for syphilis. Positive RPR samples are reflexed to determine titer and to a confirmatory treponemal assay as part of the traditional algorithm. False positive results associated with various medical conditions, including other infections (e.g., HIV), autoimmune conditions, vaccinations, injecting drug use, pregnancy, and older age may occur with the RPR test.
Reflex testing uses predefined clinical logic to automatically order one or more follow-up tests based on the initial test results. Reflex tests are performed automatically without the intervention of the ordering practitioner. They are conducted using the same sample your Patient already provided. If reflex tests are required, there will be additional charges.
Initial test
- RPR (Reagin Ab)
Possible reflex biomarkers
- RPR Titer
- Treponema Pallidum Ab
Estimated days for results: Results should be available within 2 - 5 business days after samples are received at the lab.
PrEP RPR (Diagnosis) with Reflex Titer and Treponema pallidum Antibody, IA - RPR is a nontreponemal (lipoidal antigen) test used to screen for syphilis. Positive RPR samples are reflexed to determine titer and to a confirmatory treponemal assay as part of the traditional algorithm. False positive results associated with various medical conditions, including other infections (e.g., HIV), autoimmune conditions, vaccinations, injecting drug use, pregnancy, and older age may occur with the RPR test.
This assay may be performed as part of an overall screening regimen for patients considering or who are currently taking HIV PrEP. Please refer to the "Preexposure Prophylaxis for the Prevention of HIV Infection in the United States - 2021 Update Clinical Practice Guideline" for additional information.
2–5 business days
Blood Draw Options with Fullscript
Fullscript offers several convenient phlebotomy options to complete your lab testing:
Quest Diagnostics Patient Service Centers (PSC)
- Location: Visit a nearby Quest Diagnostics Patient Service Center.
- Cost: $10 sample collection fee (paid during lab order checkout).
- Scheduling: Schedule your appointment here. Appointments are recommended to reduce wait times. Walk-ins are accepted, but may experience delays. Aim to arrive 10 minutes before your appointment.
- Collection Instructions:
- Bring a valid ID.
- Bring your digital or printed requisition form, available in the Labs tab of your Fullscript account.
- Check-in: Scan the QR code from your confirmation email or follow kiosk instructions.
- More Info: Quest Diagnostics blood draw guide
Getlabs Mobile Phlebotomy
- Location: Sample collection at your home or office.
- Cost: $85 sample collection fee (paid during lab order checkout).
- Availability: Available in most locations – enter your ZIP code during checkout to confirm.
- Scheduling: Schedule your appointment here through your Fullscript account.
- Collection Instructions:
- Have your digital or printed requisition form and valid ID ready.
- Your phlebotomist will contact you by phone to coordinate arrival.
- More Info: Getlabs blood draw guide
- Preferred Specimen(s): 3 mL serum
- Alternative: NA
- Minimum Volume: 2 mL
- Collection Instructions: NA
- Transport Container: Transport tube
- Transport Temperature: Room Temperature
- Specimen Stability:
- Room temperature: 4 days
- Refrigerated: 7 days
- Frozen: 30 days
- Reject Criteria:
- Hemolysis • Lipemia
State restrictions:
Patient can't order this test if they are located in Puerto Rico, Hawaii, Rhode Island, New Jersey, or New York

