张某,女,27岁。1994年10月因牙龈出血来我科治疗。经化验检查血常规及血小板均正常。口腔检查发现_(3～1)+_(1～3)牙结石较多,牙龈轻度红肿充血。遂作牙齿洁治术,术毕后即用3％双氧水清洗口腔.约5 min左右,患者感头晕,胸闷不适;面色苍白出冷汗并有轻度寒颤,神志清。测BP9/7kPa,P126次/min。即平卧,皮下注射0.1％肾上腺素0.5 ml,肌肉注射5 mg地塞米松,静脉推注40ml50％葡萄糖加维生素C0.5g。 Zhang, female, 27 years old. October 1994 due to bleeding gums to our department treatment. Laboratory tests blood and platelets are normal. Oral examination found that _ (3 ~ 1) + _ (1 ~ 3) more calculus, mild redness swollen gingival congestion. Dental treatment was done, after surgery with 3% hydrogen peroxide to clean the mouth about 5 min or so, the patient feeling dizzy, chest tightness, discomfort; pale cold sweat and mild chills, clear consciousness. Measure BP9 / 7kPa, P126 times / min. That is supine, subcutaneous 0.1% epinephrine 0.5 ml intramuscular injection of 5 mg dexamethasone, intravenous injection of 40ml50% glucose and vitamin C0.5g.