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Pathology General 1020f53b

Ram Devi presented with generalized edema sweating and ushing tachycardia and fever after bee sting. This is

A
T cell mediated cytotoxicity
B
IgE mediated reaction
C
IgG mediated reaction
D
IgA mediated hypersensitivity reaction
High-Yield Explanation
The symptoms of the patient are d/t hypersensitivity type I reaction Type I is mediated by IgE and it airs up within minutes. The symptoms range from rashes to anaphylactic shock with vasodilatory hypotension and bronchiolar spasm. Examples of type I Eczema* Hay fever* Asthma* Anaphylactic shock* Urticaria* A cute dermatitis * Theobald Smith reaction * Other hypersensitivity reactions Type II is characterized by an antigen antibody reaction on the surface of a host cell*. Mediated by IgG or IgM. Examples Blood transfusion reactions * Transplant rejection * Auto immune hemolytic anaemia* Auto immune thrombocytopenic purpura * Diabetes disease* Good pasture’s syndrome * Grave's disease* Myasthenia gravis* Pemphigus Pernicious anaemia 1. Rheumatic fever* Type HI reactions Mediated by antigen / antibody complex*. Examples PAN* Post streptococcal glomerulonephritis* Rheumatoid arthritis* Systemic lupus erythematosis* Acute viral hepatitis* Penicillamine toxicity* Serum sickness* Arthus reaction*

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