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患者女,45岁,本院职工。因8前倾颊向阻生7远中邻面接触点以下牙颈部龋,探、叩(+),疼痛数月。治疗效果不显,要求拔除7。患者既往有青霉素、链霉素、普鲁卡因等药物过敏。故用利多卡因麻醉前作皮试,约3分钟,皮丘扩大,皮肤发痒;5分钟后皮丘扩大明显,潮红。随即口服地塞米松0.75mg,肌注扑尔敏1支。约10分钟,上述症状更明显,皮丘象寻麻疹一样扩展至整个上肢,全身皮肤潮红,同时出现全身症状,心跳加快、胸闷、呼吸困难,立即给
Female patient, 45 years old, hospital staff. Due to the 8 pre-tilt to the impacted 7 distal midline contact points below the dental caries, exploration, knock (+), pain for several months. Treatment effect is not significant, requiring removal 7. Past patients with penicillin, streptomycin, procaine and other drugs allergy. It is used for lidocaine anesthesia before the skin test, about 3 minutes, epidermis enlargement, itchy skin; 5 minutes after the epidermal enlargement significantly, flushing. Immediate oral dexamethasone 0.75mg, intramuscular chlorpheniramine one. About 10 minutes, the above symptoms are more obvious. The hides like a hives spread like hives to the whole upper extremity. The whole body is flush with the skin. At the same time, there are systemic symptoms, rapid heartbeat, tightness in the chest, difficulty breathing and immediate