TPHA Test for Syphilis. Used as a confirmatory test.

TPHA Antigen Test

CE Marked
for export only


  • CPT Code 86781

Sensitivity & Specificity

  • Sensitivity: >99%
  • Specificity: >99%

Available Kit

  • 200 Test kit  #980200E

TPHA Antigen Test

The ASI TPHA Test for syphilis is a convenient and specific qualitative and semiquantitative microhemagglutination test for the presence of IgG and IgM antibodies to Treponema pallidum, in human serum and EDTA plasma. The assay uses preserved avian erythrocytes coated with antigens of T. pallidum (Nichols strain), which will bind with specific antibodies present in patient’s serum or plasma. TPHA is used as a confirmatory syphilis test. This test requires minimal laboratory equipment and is easy to perform.


  • Simple and economical to use
  • Liquid controls included in kit
  • 2 Levels of controls (reactive and nonreactive)
  • Read results in 45 minutes
  • Liquid test cells (No reconstitution, 100 tests per vial)
  • Long shelf life - up to 18 months from date of manufacture
  • Sample may be stored at 2-8° C
  • Serum or EDTA samples may be used