latex fixation test

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latex

 [la´teks] (L. “fluid”)
1. any of various white viscid fluids secreted by certain plants; the variety from Hevea brasiliensis, the rubber tree, was formerly the main source of commercial rubber. Allergic reactions to natural latex are an important cause of type IV hypersensitivity reactions. See also latex allergy.
2. any of several synthetic fluids resembling natural latex, including polystyrene and polyvinyl chloride; these are not causes of latex allergy.
latex agglutination test (latex fixation test) a diagnostic study used to detect certain antibodies in body fluids; latex particles are used as passive carriers, and particles clump together following the addition of the antibody. One use is as a serologic test for rheumatoid factor in diagnosis of rheumatoid arthritis.

la·tex ag·glu·ti·na·tion test

a passive agglutination test in which antigen is adsorbed onto latex particles which then clump in the presence of antibody specific for the adsorbed antigen.
Synonym(s): latex fixation test