Syphilis, FTA-ABS (Antibody Confirmation Test – Treponema palladium)

Syphilis, FTA-ABS (Antibody Confirmation Test – Treponema palladium)
DataValue
Method Indirect Fluorescent Antibody (IFA)
CPT Code 86781
Test Scope
Preferred Specimen Serum
Other Acceptable Specimens None
Required Specimen Volume 2-4 mls serum
Minimum Specimen Volume 2 mls serum
Specimen Container Red Top or SST Tube, 7-10 ml
Specimen Identification Label tube with patient’s first and last name, DOB and date/time of collection.
Special Instructions
  • Sample may be stored up to 5 days at 2-8 ° C
  • Centrifuge and remove serum from clot as soon as possible and before storing. Transfer separated serum into labeled plastic transport tube.
  • If need to store longer than 5 days, serum may be frozen at -20o C or colder. Include any medical history or relevant clinical findings on requisition.
Shipping Requirements Store and ship at refrigerated temperature 2-8° C.
Sample Rejection Criteria
  • Hemolysis
  • Lipemia
  • Gross bacterial contamination
  • Quantity not sufficient for testing (QNS)
Reference Interval Non-Reactive
Turn-around-time 24 hours