患者男，７６岁。因上呼吸道感染１天入院，给予５％葡萄糖液２５０ｍｌ加青霉素８００万Ｕ静滴。既往有冠心病病史１６年，无青霉素等药物过敏史，无哮喘及其他过敏性疾病。先做青霉素皮试，注入皮试液０１ｍｌ（含５０Ｕ青霉素Ｇ），约１分钟时，患者自述憋闷，即刻测脉搏消 Male patient, 76 years old. Admitted to hospital for upper respiratory tract infection 1 day, given 5% glucose solution plus penicillin 250 million U intravenous infusion. Past history of coronary heart disease 16 years, no history of penicillin and other drug allergies, no asthma and other allergic diseases. First do penicillin skin test, into the skin test solution 01ml (containing 50U penicillin G), about 1 minute, the patient readme oppressed, immediately measured pulse elimination