【单选题】
以下各项中，哪项最易引起阿-斯综合征___
A. 房扑
B. 阵发性室上性心动过速
C. 非持续性室速
D. Ⅲ度房室传导阻滞
E. 窦性心动过速
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答案
D
解析
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扩张型心肌病患者，突然发作心动过速，心电图提示为室上性心动过速，首选治疗是___
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1OO、下列室上性心动过速治疗的组合中，哪项正确___
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B. 合并支气管哮喘—心得安静脉注射
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【单选题】
女，42岁。阵发心悸8年，发作时心电图为室上性心动过速，平时心电图P-R间期<0.12秒，QRS初始部位模糊、粗钝，QRS波群时间0.12秒，发作时治疗最好选用___
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