Lab test
Treponemal Syphilis Test
This page explains the treponemal syphilis test, what it measures, and how to order it. This blood test looks for antibodies produced by your body in response to syphilis, a bacterial infection.
What this test is
The Treponemal Syphilis Test is a blood test that specifically detects antibodies produced by the body when infected with *Treponema pallidum*, the bacterium that causes syphilis. It is used to help diagnose this sexually transmitted infection.
What it measures
- Antibodies to Treponema pallidum — indicates exposure to the syphilis-causing bacterium
What the test involves
This test requires a blood sample, which is typically collected from a vein in your arm during a standard blood draw. The collected blood is then sent to a laboratory for analysis.
Why it is often ordered
A clinician may order this test if you have symptoms suggestive of syphilis or if you have been exposed to someone with the infection. It is also often included in routine screening panels.
Preparation
You will need to follow any specific preparation instructions provided by the laboratory where your sample will be collected. These instructions will be communicated to you before your appointment.
How results are reported
Results are typically reported as either reactive (positive) or non-reactive (negative). Qualitative reference ranges may vary between laboratories, and your clinician will interpret your results in the context of your health.
Before you go
- Turnaround time
- Specific preparation instructions
- How to schedule your blood draw
FAQ
Frequently asked questions
What is syphilis?
Syphilis is a sexually transmitted infection caused by bacteria called *Treponema pallidum*. It can affect both men and women and can cause serious health problems if not treated.
How is syphilis treated?
Syphilis is treatable with antibiotics, most commonly penicillin. Early diagnosis and treatment are important to prevent long-term complications.
Can this test be done at home?
While some home testing kits are available, this specific test is typically performed on a sample collected at a healthcare provider's office or a designated laboratory. Always confirm with your provider.
What does a reactive result mean?
A reactive result suggests that antibodies to *Treponema pallidum* were detected in your blood. This indicates a possible past or current syphilis infection. Further testing is often needed to confirm the diagnosis.
Related
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Locations
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