【单选题】
扩血管药物在下列哪种疾病中慎用___
A. 二尖瓣重度关闭不全
B. 二尖瓣重度狭窄
C. 主动脉重度关闭不全
D. 室间隔缺损
E. 扩张型心肌病
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答案
B
解析
暂无解析
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R-on-T室性期前收缩的心电图特点不包括___
A. 室性期前收缩发生于T波的顶峰上
B. 室性期前收缩发生于T波前20-40ms处
C. 室性期前收缩发生于T波顶峰前20-40ms处
D. 室性期前收缩发生于T波的升枝上
E. 室性期前收缩发生于T波的降枝上
【单选题】
多源性室性期前收缩是指___
A. 同一份心电图上出现两种或两种以上形态的室性期前收缩
B. 同一份心电图上出现两种或两种以上形态的QRS波群
C. 心电图同一导联上出现两种或两种以上形态的QRS波群
D. 心电图同一导联上出现两种或两种以上形态的室性期前收缩
E. 心电图同一导联上出现三种或三种以上形态的室性前收缩
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A. 突然发生,突然终止
B. 心率通常超过150次/min
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治疗成人室性心律失常时,利多卡因静滴的速度为___
A. 0.1~0.4mg/min
B. 0.1~0.4 mg/kg.min
C. 1~4 mg/min
D. 1~4 mg/kg.min
E. 10~40 mg/min
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C. 症状出现12小时内发生心脏骤停
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接产要领不包括下列哪项___
A. 无菌操作,保护会阴
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男性19岁,车祸致伤,神志模糊,咯血、口鼻均有泥沙夹血外溢,呼吸困难,烦躁不安。左侧胸部严重擦伤,肿胀,心率98次/分,血压120/90mmHg,四肢活动尚可,左大腿中下段中度肿胀,要瘀斑和严重擦伤,此时最紧迫的抢救措施是___
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【单选题】
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【单选题】
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【单选题】
Q4: What is the main idea of the passage?___
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【单选题】
Q2: What can we learn about Christopher?___
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【单选题】
Q3: What does the woman think about Christopher taking the trip to Alaska?___
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