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患者马××,女,18岁,回族。6残冠,要求拔除,既往曾有青霉素过敏史,术者选用2%利多卡因行左下齿槽神经、舌神经、颊神经传导麻醉。注射麻醉液3.5ml后患者立即感到头晕、恶心、四肢麻木、呼吸困难。随即出现面色苍白,血压下降50/30mmHg,心率30/分,心音低钝,意识完全丧失。立即采取皮下注射1:1000肾上腺素1.0ml,静脉推注50%葡萄糖80ml加维生素C500mg。2分钟后,血压逐渐回升,
Patient × ×, female, 18 years old, Hui. 6 residual crown, asked to remove the past had a history of penicillin allergy, surgery were selected 2% lidocaine line lower left alveolar nerve, lingual nerve, buccal nerve conduction anesthesia. The patient immediately felt dizzy, nausea, numbness and breathing difficulties after 3.5ml of anesthetic solution was injected. Immediate pale, blood pressure dropped 50 / 30mmHg, heart rate 30 / min, low heart sound blunt, the complete loss of consciousness. Immediately take subcutaneous injection of 1: 1000 epinephrine 1.0ml, intravenous injection of 50% glucose 80ml plus vitamin C500mg. 2 minutes later, blood pressure gradually rose,