agglutination test


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Related to agglutination test: latex agglutination test, precipitation test, hemagglutination test, Direct agglutination test, slide agglutination test

agglutination

 [ah-gloo″tĭ-na´shun]
1. the action of an agglutinant substance.
2. the clumping together in suspension of antigen-bearing cells, microorganisms, or particles in the presence of specific antibodies (agglutinins).
Agglutination reactions. From Applegate, 2000.
3. the process of union of the surfaces of a wound. adj., adj agglutina´tive.
cross agglutination the agglutination of particulate antigen by an antibody raised against a different but related antigen; see also group agglutination.
group agglutination agglutination, usually to a lower titer, of various members of a group of biologically related organisms by an agglutinin specific for one of that group. For instance, the specific agglutinin of typhoid bacilli may agglutinate other members of the colon-typhoid group, such as Escherichia coli and Salmonella enteritidis.
intravascular agglutination clumping of particulate elements within the blood vessels; used conventionally to denote red blood cell agglutination.
platelet agglutination the clumping together of platelets owing to the action of platelet agglutinins; such agglutinins are important in platelet typing.
agglutination test any test based on an agglutination reaction, as serologic tests for specific antibodies.

ag·glu·ti·na·tion test

any of a variety of tests dependent on the clumping of cells, microorganisms, or particles when mixed with specific antiserum.

Agglutination Test

A serologic test to identify antibodies in the blood, urine or other fluid.

agglutination

aggregation of separate particles into clumps or masses; especially the clumping of bacteria or blood cells by antibody specific to, or directed against, surface antigenic determinants. See also agglutinin.

bacterial agglutination test
a diagnostic procedure that employs serum or other body fluid of unknown antibody titer, titrated with standard suspension of bacteria as antigen. These may be performed quantitatively in 96-well microtitration plates or qualitatively on slides.
cross agglutination
the agglutination of particulate antigen by an antibody raised against a different but related antigen; see also group agglutination (below).
group agglutination
agglutination—usually to a lower titer—of various members of a group of biologically related organisms by an agglutinating antibody made to one of that group.
intravascular agglutination
clumping of particulate elements within the blood vessels; used conventionally to denote red blood cell agglutination.
latex agglutination test
see passive agglutination test (below).
microscopic agglutination test
one in which the test mixtures are examined microscopically to detect the agglutination.
mucus agglutination test
see mucus agglutination test.
passive agglutination test
an agglutination reaction in which a soluble antigen, such as gonadotropin, is linked to inert particles such as latex beads or tanned erythrocytes.
platelet agglutination
the clumping together of platelets owing to the action of platelet agglutinins. Such agglutinins are important in platelet typing.
slide agglutination test
a rapid screening or semiquantitative test in which antibody and antigen are mixed on a glass slide and observed for agglutination.
agglutination test
see bacterial agglutination test (above).
tube agglutination test
an agglutination test for the identification of bacteria carried out in a test tube, a positive reaction consisting of a clearing of a prior opalescence.
References in periodicals archive ?
These methods are called latex agglutination tests (LATs).
Microscopic Agglutination Test (MAT): was performed by standard procedure (13) using the following twelve serovars.
5 per cent had specific leptospiral antibodies, with titres ranging from 1:160 to 1:6400 by microscopic agglutination test (MAT) against different serovars, and 71 per cent seropositive cases were diagnosed by MAT with clinical suspicion of leptospirosis in 1996 (4).
This is because negative or positive Widal agglutination test is neither definitive nor completely informative.
One nonpregnant dairy cow had positive test results by slow agglutination test and ELISAs and was slaughtered on April 23, 2012.
Methods for assessment of ASAB can be categorized into: 1) direct methods to detect the presence of ASAB on sperm (sperm mixed agglutination reaction [sMAR], immunobead test [IBT]) or; 2) agglutination tests using donor sperm (gelatin agglutination test, tray agglutination test [TAT], radiolabeled agglutinin assay).
A new agglutination test for serum antibodies to adult T-cell leukemia virus.
Beginning in 1924, the agglutination test was used for diagnosis of leptospirosis; the test was performed as described by Martin and Pettit (13) using serovars Pyrogenes and Rachmat and unidentified isolates from patients.
Antigen detection for Hib was done in CSF using a previously described local latex agglutination test (17), some specimens were also tested in the second year with a commercial latex agglutination test (BD "Directigen", BD Bioscience, Sparks, MD, USA).
The specificity of the slide agglutination test is 90%, and its sensitivity is approximately 95% in acute brucellosis but only 50% in chronic brucellosis.
Concentrated, D-Dimer, ELISA for Anti Hbs Ab (Quantitative), Latex Agglutination test to detect streptococcus group B.
Table 24: Commercially Available Immuno-FOB Agglutination Test Systems 72 Table 25: Product Profile - Immuno-FOB Agglutination Tests 72 Table 26: Immuno-FOB Agglutination Tests SWOT Analysis, 2013 74 Table 27: Key Mutations Associated with CRC 76 Table 28: Key Stages of PCR Gene Test 77 Table 29: Product Profile - PreGen Plus 79 Table 30: PreGen Plus SWOT Analysis, 2013 80 Table 31: Product Profile - K-RAS, B-RAF, PIK3CA Array 81 Table 32: K-RAS, B-RAF, PIK3CA Array SWOT Analysis, 2013 82 Table 33: Product Profile - Colonsentry 83 Table 34: Colonsentry SWOT Analysis, 2013 83 Table 35: Product Profile - Detector C 2.