【单选题】【消耗次数：1】
以下哪类新生儿心律失常可能预后不良（）
①
阵发性室上性心动过速
②
心房颤动
③
特发性室性心动过速
④
先天性长QT综合征
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相关题目
【单选题】
阵发性室上性心动过速的心电图诊断，下列哪项不正确？
①
心室率150~250次/分
②
节律一般规则，但亦可有不规则
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QRS波群形态可不正常
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可见到逆行P波
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开始和终止突然
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符合室性阵发性心动过速的心电图条件是
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QRS波群宽大畸形
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R-R间隔0.36～0.26s
③
R-R间隔0.4～0.3s
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QRS波群时限＞0.12s
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室性心动过速心电图特征错误的是:
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3个或以上的室性早搏连续出现
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心室率通常为140-200次/分，心律规整，也可不齐
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房室分离
④
QRS波群形态宽大畸形，时限＞0.10s，T波方向与QRS 波群主波方向相同
⑤
心室夺获与室性融合波
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Many manufacturers were accused of concentrating too heavily on cost reduction, often at the ____ of the quality of their products.
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informed
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I’m very sorry to have ____ you with so many questions on such an occasion.
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interfered
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offended
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impressed
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bothered
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If we say some food is ____, we mean it is safe to eat.
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ideal
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must take
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novel
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acceptable
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additional