| Test: | Treponemal Antibody Absorption, IgG |
| Synonym: | Fluorescent Treponemal Antibody(FTA), FTA-ABS |
| Method: | Indirect Fluorescent Antibody |
| Availability: | Test performed on Wednesday by 0800; Results same day. |
| Specimen: | serum |
| Collection Device: | One 6.0mL SST (Gold) tube Specimen Labeling: Test subject to CLIA regulations and required 2 patient identifiers on specimen container and requisition forms |
| Volume: | 2.0 mL serum; 0.5 mL minimum. |
| Storage/Transport: | Prior to and during shipment: Centrifuge the sample and transfer the serum into a clean tube. Refrigerate at 4-8°C Shipping instructions, including specimen-handling requirements during transport: All screw-top tubes must be sealed with parafilm or tape. Vacutainer tubes do not require parafilm or tape to seal. Package and ship as UN3373 Category B, Biological Substance. Place in biohazard bag with absorbent material. Refrigerated specimen should be shipped with frozen gel-packs. Transport by NPHL ground courier (NPHL brown shipper not required). If courier not available, contact Client Services (866) 290-1406 to arrange pickup. See instructions and shipping address: http://nphl.org |
| Unacceptable: | Whole blood, improper specimen labeling |
| Specimen Stability: | After separation from cells: Ambient: <8 hours. Refrigerated: 48 hours; Frozen: 1 year (avoid repeated freeze/thaw cycles) |
| Reference Interval: | Nonreactive |
| Reportable Disease: | Positive results are reported to the local or state health department, refer to Nebraska DHHS Title 173, Communicable Diseases |
| Comments: | Pre-approval needed from state or local health department. Send approval to NPHL@unmc.edu or call (402) 559-9444. Please provide RPR result. If no RPR result available, RPR will be performed prior to FTA. |
| Revised: | 7/11/2019 |