RT Book, Section A1 Kim, Brian A. A1 Yang, Seol W. A2 Freeman, Brian S. A2 Berger, Jeffrey S. SR Print(0) ID 1102568317 T1 Anaphylaxis T2 Anesthesiology Core Review: Part One Basic Exam YR 2014 FD 2014 PB McGraw-Hill Education PP New York, NY SN 9780071821377 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1102568317 RD 2024/10/03 AB Allergic, hypersensitivity reactions are amplified immunologic responses triggered by allergen, or antigen stimulation in previously sensitized individuals. The sensitization occurs from the identical antigen that triggers future allergic reaction, or from a different antigen sharing similar molecular structures.