患者男,36岁,5分钟前食桃子2个,随即出现胸闷、心慌、气短,出冷汗,于1991年8月30日急诊入院。既往史:1989年10月曾因食用香蕉5分钟后出现上述症状,且胸、颈部大片荨麻疹;1990年10月曾因食用苹果5分钟后出现上述症状,且较重,经住院治疗5天痊愈;有多种药物过敏史。体检:T36.2℃,P88次/min,R26次/min,Bp8.0/ Male, 36 years old, eat peaches 2 5 minutes ago, followed by chest tightness, palpitation, shortness of breath, a cold sweat, in August 30, 1991 emergency admission. Past history: 1989 October due to consumption of bananas after 5 minutes of the above symptoms, and chest, neck and large urticaria; October 1990 once consumed the apple for 5 minutes after the above symptoms, and heavier, hospitalized 5 Days cured; there are a variety of drug allergy history. Physical examination: T36.2 ℃, P88 times / min, R26 times / min, Bp8.0/