Complement Fixation Tests
Synonyms
Complement Absorption Test, Conglutinating
Complement Fixation Test
Conglutinating Complement Absorption Test
Conglutination Reaction
Conglutination Reactions
Fixation Test, Complement
Fixation Tests, Complement
Reaction, Conglutination
Reactions, Conglutination
Test, Complement Fixation
Tests, Complement Fixation
Serologic tests based on inactivation of complement by the antigen-antibody complex (stage 1). Binding of free complement can be visualized by addition of a second antigen-antibody system such as red cells and appropriate red cell antibody (hemolysin) requiring complement for its completion (stage 2). Failure of the red cells to lyse indicates that a specific antigen-antibody reaction has taken place in stage 1. If red cells lyse, free complement is present indicating no antigen-antibody reaction occurred in stage 1.