题目内容

下列哪项不是慢性缩窄性心包炎的病理生理改变

A. 收缩期心排血量减少
B. 舒张期心室充盈受限
C. 心肌收缩力降低
D. 静脉血回流受阻,体静脉系统压力增高
E. 左心后负荷增加

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关于心脏停搏液的基本标准,下列选项正确的是

A. 停搏液中钾离子的最佳浓度为15~30mmol/L
B. 提供糖、高能磷酸化合物、氨基酸能量代谢底物,保护心肌,减轻缺血再灌注损伤
C. 普鲁卡因、糖皮质激素可增加心肌保护效果
D. pH和渗透压趋近血液正常值
E. 以上都是

张力性气胸的典型临床表现是

A. 缺氧性躁动
B. "BECk"三联征
C. 纵隔扑动
D. 重度或极度呼吸困难及广泛性皮下气肿
E. 反常呼吸

胸腔闭式引流术的适应证,不包括

A. 脓胸脓液黏稠需要持续排脓者
B. 中等量血胸者
C. 气胸需要持续排气者
D. 剖胸手术者
E. 连枷胸者

Think about driving a route that&39;s very familiar. It could be your commute to work, a trip into town or the way home. Whichever it is, you know every twist and turn like the back of your hand. On these sorts of trips it&39;s easy tolose concentration on the driving and pay little attention to the passing scenery. The consequence is that you perceive that the trip has taken less time than it actually has.
This is the well-travelled road effect: people tend to underestimate the time it takes to travel a familiar route. The effect is caused by the way we allocate our attention.
When we travel down a well-known route, because we don&39;t have to concentrate much, time seems to flow more quickly. And afterwards, when we come to think back on it, we can&39;t remember the journey well because we didn&39;t pay much attention to it. So we assume it wasshorter.

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