schultz dale phenomenon the following is true statements :: (A) anaphylaxis in vitro, (B) test to detect atopy, (C) type v hypersenstivity reaction, (D) test for allergic contact dermatitis
Answer is A. Schultz-Dale reaction A method for demonstrating anaphylactic hypersensitivity outside the body by suspending an excised intestinal loop or uterine strip from a sensitized animal in an oxygenated, physiological salt solution; addition of the proper allergen causes contraction of the smooth muscle. TYPE I Hypersensitivity * Type I hypersensitivity -- immediate or anaphylactic hypersensitivity * Immediate hypersensitivity is mediated by IgE * The primary cellular component in this hypersensitivity is the mast cell or basophil * The reaction is amplified by neutrophils and eosinophils ref /; anantharayana 9th ed