Treponema pallidum Antibody, Particle Agglutination

Test Code

653

Alias/See Also

1230101476 | LAB1197: Treponema Particle Agglutination | QUEST EAP: 653 | SYPHILIS|FTA -ABS

CPT Codes
86780

Preferred Specimen

1 mL serum

Minimum Volume

0.5 mL

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolysis • Lipemia • Plasma • CSF

Methodology
Particle Agglutination

Setup Schedule

Set up: Mon, Wed-Sat; Report available: 1-3 days

Reference Range

Non-Reactive

Clinical Significance

The TP-PA test is a confirmatory treponemal test used to aid in the diagnosis of syphilis in the context of a positive non-treponemal (lipoidal antigen) assay. It is not intended to be used as a standalone test for diagnosis. For algorithm based syphilis testing, please see test code 90349 Syphilis Antibody Cascading Reflex (reverse) or test code 36126 RPR (Diagnosis) with Reflex to Titer and Confirmatory Testing (traditional).

Performing Laboratory

Quest Diagnostics Nichols Institute

14225 Newbrook Drive

Chantilly, VA 20153

Last Updated: April 21, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.