csf vdrl
STICerebrospinal fluid (CSF) sampleResults 2-3 daysNo fasting
CSF VDRL
A specialised test on cerebrospinal fluid used to help diagnose neurosyphilis, syphilis affecting the nervous system. It is ordered as part of a clinical workup.
Sample
Cerebrospinal fluid (CSF)
Results
2-3 days
Fasting
Not required
Follow-up
Optional add-on
What this test detects
Syphilis reagin antibodies in CSF
VDRL on CSF
Qualitative · Reactive/Non-reactive
When to get this test
Suspected neurosyphilis
Used when there are neurological signs or symptoms that may be linked to syphilis.
Confirmation workup
Helps confirm nervous-system involvement in people with known syphilis.
Treatment guidance
Supports decisions on the right course of treatment for advanced syphilis.
How to prepare
01
No special preparation needed. The cerebrospinal fluid sample is collected by a clinician during a lumbar puncture procedure.
Common questions
How is the sample collected?
Cerebrospinal fluid is collected by a clinician through a lumbar puncture (spinal tap).
Why test the spinal fluid?
Testing CSF helps determine whether syphilis has affected the nervous system, which blood tests alone cannot confirm.