TPI test -->
Treponema pallidum immobilization test
medical dictionary

A test for syphilis in which an antibody other than Wassermann antibody is present in the serum of a syphilitic patient, which in the presence of complement causes the immobilization of actively motile Treponema pallidum obtained from testes of a rabbit infected with syphilis.

Synonyms: TPI test, Treponema pallidum immobilization reaction.

(05 Mar 2000)