ARUP's Laboratory Test Directory

0093093: Treponema pallidum (VDRL), Serum with Reflex to Titer

Test Mnemonic: VDRL SERU
Methodology: Flocculation

Performed: Mon-Fri

Reported: 1-4 days

Specimen Required:  
Collect: One 4 mL plain red or SST.

Transport: 1 mL serum at 2-8°C.  (Min: 0.5 mL)  Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport: 0.15 mL serum at 2-8°C.

Unacceptable Conditions: Severely lipemic, contaminated, heat-inactivated, or hemolyzed specimens.

Stability: After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)

Reference Interval:
 
Test Number Components Reference Interval
 Treponema pallidum (VDRL), Serum Nonreactive
 Treponema pallidum (VDRL) Titer, Serum < 1:2

Interpretive Data:
VDRL as a screening test is less sensitive than RPR.



Note:
If VDRL is weakly reactive or reactive, then a titer will be added.

CPT Code(s):
86592 Treponema pallidum screen; if reflexed, add 86593 Treponema pallidum titer