passive cutaneous anaphylaxis test
Definition: an animal is injected intradermally with antibody (usually IgE) and subsequently challenged intravenously with a mixture of antigen and Evans blue dye 24–48 hours later. A dark blue area indicates a positive reaction due to the leakage of the dye at the site of antigen-antibody reactions.
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Examples: glitazone, GI cocktail, etc.
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