TPPA
| Test Name: | Serodia®-TPPA |
| Test Methodology: | Qualitative gelatin particle agglutination assay |
| Test to be Performed: | Treponema pallidum Particle Agglutination Assay |
| CPT: | 86780 |
| Reflex Testing Criteria: | N/A |
| Pre-Approval Required: | N/A |
| Accepted Specimens: | Serum is the specimen of choice, however EDTA, Sodium Citrate or Heparin plasma may be used when serum cannot be obtained. Specimens containing erythrocytes or other visible matter should be centrifuged prior to testing to prevent interference with test results. |
| Specimen Stability: | Serum samples should be tested within 5 days of collection. Optimum storage: 2-8°C. For samples that require longer than 5 days storage, serum must be removed from the red cells and stored at -20°C or below. Sera may be frozen and thawed only once. Plasma samples should be tested within 48 hours. Do not freeze plasma. |
| Storage/Transport Conditions: | Specimens should be stored and transported at 2-8ºC. Sufficient frozen cold packs in an insulated cooler can be used to maintain this temperature. |
| Turnaround Time: | 5 business days |
| Reference Range: | Non-reactive |
| Comments: | Test performed by provider request or on discordant results following EIA and RPR Titer in the reverse algorithm for syphilis screening. |
Public Health Laboratory Location

150 East Holt Boulevard
Ontario, CA 91761
Phone: (909) 458-9430
Fax: (909) 986-3590
Monday – Friday: 8 a.m. to 5 p.m.