Hemagglutination Inhibition
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General concept:
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a two-step procedure in which there is competition between
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a reagent antigen (antigen-coated particle) and a soluble
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test antigen (pt
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s serum) for antigen-binding sites
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on a reagent antibody.
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Procedure:
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Step 1
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Reagent antibody + patient serum added together
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incubation period
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Step 2
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Reagent antigen-coated particles added
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incubation period
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interpretation of reaction made