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Test ID VDSFQ VDRL Titer, Spinal Fluid


Specimen Required


Only orderable as a reflex. For more information see VDSF / VDRL, Spinal Fluid.

 

Collection Container/Tube: Sterile vial

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL


Secondary ID

65036

Useful For

Aiding in the diagnosis of neurosyphilis

Testing Algorithm

Only orderable as a reflex. For more information see VDSF / VDRL, Spinal Fluid.

Method Name

Only orderable as a reflex. For more information see VDSF / VDRL, Spinal Fluid.

 

Flocculation/Agglutination

Reporting Name

VDRL Titer, CSF

Specimen Type

CSF

Specimen Minimum Volume

0.2 mL

Specimen Stability Information

Specimen Type Temperature Time
CSF Frozen (preferred) 14 days
  Refrigerated  14 days

Clinical Information

VDRL is a nontreponemal serologic test for syphilis that uses a cardiolipin-cholesterol-lecithin antigen to detect reaginic antibodies.

 

The presence of neurosyphilis in untreated patients can be detected by the presence of pleocytosis, elevated protein, and a positive VDRL.

Reference Values

Only orderable as a reflex. For more information see VDSF / VDRL, Spinal Fluid.

 

Negative

Reference values apply to all ages.

Cautions

VDRL testing on spinal fluid gives a high percentage of false-negative results.

Day(s) Performed

Monday through Friday

Report Available

1 to 3 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

86593

NY State Approved

Yes