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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.
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Passive cutaneous anaphylaxis detect:
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The correct answer is  Ans. (a)Passive cutaneous anaphylaxis-in vivo method for detection of antibodies.Antigen injection intradermally then same antigen with a dye injected IV - after 4 to 24 hours - wheal flare reaction occurs in intradermal site.Helps to detect IgG ab which is heterocytotropic, not for IgM which is homocytotropic.