Syphilis VDRL (Post-treatment)
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| WSLH Department: | CDD - Communicable Disease Division |
| WSLH Test Code: | SS02019 |
| Day(s) Performed: | Test is run twice weekly (Tuesdays and Fridays) |
| Turn-around Time: | 1-4 days |
| Recommended Uses: | To follow the efficacy of treatment on positive cases, treated patients should have a quantitative nontreponemal test performed on serum drawn at 3 month intervals, for at least one year. With adequate treatment for primary and secondary syphilis, there should be at least a fourfold decline in titer by the sixth to eighth month. Patients treated in the latent or late stages may show a more gradual decline in titer. Patients with previous treated infection, but has risk factors for reinfection. |
| Contraindications: | |
| Additional Tests Performed: |
| Patient Preparations: | Routine blood draw |
| Specimen Requirements: | 1-3 ml serum or 10 ml vacutainer, no additives. |
| Specimen Handling & Transport: | Specimens must be stored refrigerated (2-8C) and transported with frozen cool packs. |
| Collection Kit/Container: |
Serology Specimens
Sterile Transfer Tube |
| Collection Instructions: | |
| Unacceptable Conditions: | |
| Requisition Form: |
CDD Requisition Form B
|
| Required Information: | Laboratory regulations require the following minimum information to be provided on the requisition form for a specimen to be accepted for testing: Patient name or unique identifier; date and time of collection, patient date of birth and sex, specimen type/site of collection, test request(s), clinician name and UPIN, and address for reporting results. Please be certain that name/identifier on the form matches that on the specimen label. |
| Results Include: | Reactive, Non-Reactive or Weakly Reactive plus titer |
| Limitations: | Titers below the limit of detection cannot demonstrate a fourfold or eightfold drop in titer. |
| Additional Tests Recommended: | |
| Additional Comments: | With adequate treatment for primary and secondary syphilis, the titer should decline by at least fourfold by the third or fourth month. Patients treated in the latent or late stages may show a more gradual decline in titer. |
| Methodology: | Floculation |
| Includes: | Quantitative VDRL testing of post-treatment serum. |
| CPT Code: | 86593 |
| Price: | $35.00 Price Effective 1/1/25 |