Source:http://linkedlifedata.com/resource/umls/id/C0009541
MSH: 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.,CSP: 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-antibod