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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Examples of type 1 hypersensitivity is -
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The correct answer is  Casoni test : it is an immediate hypersensitivity skin test. - sterile hydatid fluid is used as antigen. 0.2 ml of this antigen is injected intradermally in onearm. Sterile normal saline 0.2ml is injected intradermally in the other arm which acts as control. In positive cases, tested site develop a large wheal of 5 cm diameter or more with multiple pseudopodia. Reference :Baveja medical parasitology, third edition, Pg no:107 <\p>