TPPA Test for Syphilis
Also known as: Treponema Pallidum Passive Particle Agglutination (TPPA)
Treponema Pallidum Passive Particle Agglutination (TPPA) Details in Brief
| Also Known As | TPHA (Treponema Pallidum Hemagglutination Assay), Treponema Pallidum Particle Agglutination Test |
|---|---|
| Purpose | Confirms the presence of antibodies to Treponema pallidum, the bacteria that causes syphilis |
| Preparation | No special preparation required |
| Fasting | Fasting not required |
| Reporting Time | Same day |
| Cost | 850 |
What Is a TPPA Test?
The TPPA Test (Treponema Pallidum Particle Agglutination) is a specific confirmatory blood test used to detect antibodies against Treponema pallidum, the bacterium responsible for syphilis.
While screening tests like VDRL or RPR are used initially to detect possible syphilis infection, the TPPA test is performed to confirm the diagnosis and distinguish between true and false-positive results.
This test is conducted on a serum sample using the haemagglutination method, which detects the presence of antibodies through visible clumping (agglutination).
What Does a TPPA Test Measure?
The TPPA test measures antibodies formed by your immune system against Treponema pallidum. It helps to:
- Confirm a diagnosis of syphilis after an initial positive screening test
- Detect antibodies that persist long after infection, even if treated
- Distinguish between true infection and false positives on screening tests
- Identify late or latent syphilis cases when screening results are inconclusive
- Aid in screening high-risk individuals or pregnant women to prevent congenital infection
TPPA Test: Who Needs It and Why It’s Done
What Symptoms May Call for a TPPA Test?
You may need a TPPA test if you have:
- Sores or ulcers on genitals or mouth
- Rash on palms or soles of feet
- Unexplained fatigue, fever, or muscle pain
- Swollen lymph nodes
- History of unprotected sexual contact
- A positive or unclear VDRL/RPR screening test result
Who Should Get a TPPA Test?
The test is recommended for:
- Individuals with suspected or confirmed syphilis infection
- People with positive screening tests (VDRL/RPR) needing confirmation
- Pregnant women during prenatal screening
- Individuals with high-risk sexual exposure or multiple partners
- Patients with symptoms suggestive of late or latent syphilis
- Newborns of mothers diagnosed with syphilis
Why Is a TPPA Test Done?
The TPPA test confirms whether Treponema pallidum antibodies are present in your blood, helping to diagnose active or past syphilis infection accurately. It plays a key role in confirming positive screening results and preventing misdiagnosis.
Importance of a TPPA Test
The TPPA test is crucial because:
- It provides high specificity (≈99.6%) and sensitivity (≈98.5%) for detecting syphilis antibodies.
- It is a confirmatory test, reducing the chances of false-positive results from screening tests.
- It is vital for pregnancy care, helping prevent congenital syphilis in newborns.
- It helps doctors evaluate and monitor patients with long-standing or previously treated infections.
TPPA Test Booking & Reports – Metropolis Healthcare
How to Book the TPPA Test and Get Your Reports
- Simple Online Booking
Book your TPPA Test easily through the Metropolis Healthcare website or app. Choose a suitable time for home collection or visit your nearest Metropolis Lab. - Safe Home Sample Collection
Our trained phlebotomists collect your blood sample safely from your home while maintaining hygiene and comfort. - Sample Tracking Updates
You can track your sample status in real-time through the Metropolis Healthcare platform. - Accurate Laboratory Testing
The sample is analysed using the Haemagglutination method at NABL & CAP accredited Metropolis Labs for precise and dependable results. - Quick & Easy Reports
Get your test results quickly via email, WhatsApp, or by downloading them directly from the Metropolis Healthcare app or website.
Is Home Sample Collection for TPPA Test Available Near You?
Yes, Metropolis Healthcare provides home sample collection services for the TPPA Test. Our expert phlebotomists collect your sample safely and efficiently at your doorstep.
How Long Does It Take to Get a TPPA Test Report?
Results are typically available on the same day, once your sample reaches the Metropolis Lab.
Note: Reporting time may vary depending on your location.
Where Can I See or Get TPPA Test Results?
Your TPPA Test results can be viewed and downloaded through the Metropolis Healthcare website or mobile app. Reports are also shared via email or WhatsApp, or you can collect a printed copy from your nearest Metropolis Lab.
Interpreting TPPA Test Results
What Your TPPA Test Results May Indicate
|
Result |
Interpretation |
|
Negative |
No antibodies detected; likely absence of Treponema pallidum infection. However, very early or late infections may yield false negatives. |
|
Positive |
Indicates current or past syphilis infection. Antibodies may persist for life, even after successful treatment. |
Understanding Abnormal TPPA Test Results by Parameter
|
Result |
Possible Implication |
|
Positive |
Suggests syphilis infection (current or past). May also be positive in related treponemal diseases like yaws or pinta. |
|
Negative |
No antibodies detected, though early-stage infection cannot be completely ruled out. Retesting may be required. |
How Should You Prepare for a TPPA Test?
The TPPA Test requires no fasting or special preparation:
- You can eat and drink normally before the test.
- Inform your doctor if you have had previous syphilis infections or treatment.
- Pregnant women should mention their pregnancy status to ensure appropriate follow-up.
How Is a TPPA Test Done? (Step-by-Step Procedure)
The TPPA test involves a standard blood collection process:
- Preparation: A tourniquet is tied around your arm to make veins visible.
- Cleaning: The puncture site is cleaned using antiseptic.
- Sample Collection: A sterile needle draws about 3–5 ml of blood into a gel vacutainer.
- Completion: The needle is removed, and a bandage is applied.
- Processing: The serum is tested for antibodies using the Haemagglutination method. Clumping (agglutination) indicates a positive result.
Conditions That May Affect TPPA Test Accuracy
Factors that may affect TPPA Test results include:
- Very early infection (before antibodies develop).
- Late or latent infection where antibodies are low.
- Cross-reactivity with other treponemal infections (rare).
- Prior successful treatment – antibodies may remain positive for life.
Diseases That a TPPA Test Can Help Detect
- Syphilis (primary, secondary, or latent stages)
- Congenital syphilis (mother-to-child transmission)
- Other treponemal infections like yaws, bejel, and pinta
TPPA Test (Treponema Pallidum Particle Agglutination Test) Price in Different Cities
The cost of a TPPA Test may vary depending on your location. Here's a table showing the approximate price range for the TPPA Test at Metropolis Healthcare in major Indian cities:
|
City |
Approximate Cost (INR) |
|
₹ 600 to ₹ 900 |
|
|
₹ 600 to ₹ 900 |
|
|
₹ 600 to ₹ 900 |
|
|
₹ 600 to ₹ 900 |
The TPPA Test cost may vary depending on the city and the specific tests included in the panel. However, Metropolis Healthcare offers competitive TPPA Test prices across major cities in India.
References
- BIOLABO (2014). Haemagglutination assay for qualitative and semi-quantitative determination of antibodies to Treponema pallidum in human serum or plasma.
- Human Diagnostics Worldwide (2014). Syphilis TPHA Liquid – Product Manual.
- Hook, E.W. & Peeling, R.W. (2004). Syphilis control—a continuing challenge. New England Journal of Medicine, 351(2), 122–124. PMID: 15247354
- Peterman, T.A., et al. (2019). Syphilis testing algorithms and interpretation. Clinical Infectious Diseases, 69(6), 1101–1107. PMID: 30517790
Treponema Pallidum Passive Particle Agglutination (TPPA) Price
Metropolis Healthcare is a leading diagnostics centre and pathology lab in India equipped with the latest state-of-the-art technologies that provides the Treponema Pallidum Passive Particle Agglutination (TPPA) with a clear pricing structure.
The Treponema Pallidum Passive Particle Agglutination (TPPA) Price in Mumbai is ₹ 850 .
We are committed to deliver accurate and quality results from the best labs in India with complete transparency regarding test cost and turnaround time. No matter where you are, we strive to offer patients high-quality service that is affordable and accessible.
Frequently Asked Questions
It detects antibodies against Treponema pallidum, the bacterium that causes syphilis.
Yes, it is used as a confirmatory test after an initial screening test like VDRL or RPR.
No, fasting is not required.
A positive result indicates current or past syphilis infection.
It may not detect infection in the early stages, so follow-up testing is sometimes needed.
Yes, antibodies can remain detectable for life, even after successful treatment.
They are similar; both detect Treponema pallidum antibodies using agglutination techniques.
Related tests include RPR, VDRL, and Syphilis Total Antibody (IgM/IgG) tests.
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We offer a comprehensive range of 4000+ clinical laboratory tests and profiles, which are used for prediction, early detection, diagnostic screening, confirmation and/or monitoring of the disease.

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