(1) Serious allergic reactions, including anaphylaxis , occur rarely, but timely intervention is crucial.(2) In addition, patients with previous reactions, including anaphylaxis , to the influenza vaccine should not be vaccinated.(3) We reviewed these evaluations in 60 patients referred after a diagnosis of anaphylaxis in primary care and seen in the allergy clinics at three hospitals in south west London.(4) Less common are the type I hypersensitivity reactions which involve anaphylaxis .(5) Table 7 provides a summary of symptoms of latex exposure and possible anaphylaxis for both conscious and anesthetized patients.(6) A friend, family member or medical professional called in response to a severe anaphylactic reaction also may administer the medication.(7) In addition to aggressive treatment of anaphylactic reactions, patients who are allergic should be given preventive advice and the option of venom immunotherapy.(8) However, some people can have an immediate and more widespread allergic reaction, such as an anaphylactic shock and this can be fatal.(9) As anaphylactic shock progresses, laryngeal edema, bronchospasm, hypotension, and circulatory collapse may occur.(10) In addition, the authors imply that severe reactions to radiographic contrast media are anaphylactic in nature.