【单选题】
诊断急性肺水肿，最有特征意义的表现是___
A. 端坐呼吸
B. 心尖部舒张早期奔马律
C. 交替脉
D. 两肺干湿啰音
E. 严重呼吸困难伴粉红色泡沫痰
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答案
E
解析
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心力衰竭与心率变化的相互关系中，不正确的是___
A. 心率增快为心力衰竭早期代偿之一
B. 心率增快为心力衰竭诱因之一
C. 心率增快可使心室舒张期充盈受限
D. 心率增快可使心肌耗氧量增大
E. 心率越快，心输出量越多
【单选题】
下列哪种情况产生急性肺水肿时，宜用吗啡___
A. 风心病二尖瓣狭窄伴肺部感染
B. 急性心肌梗死伴休克
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D. 主动脉瓣关闭不全伴呼吸抑制
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【单选题】
男，60岁。高血压患者，突然心悸、气促，咳粉红色泡沫痰。查体:血压26.6/15.96kPa(200/120mmHg),心率136次/分，除其他治疗外，还应选用下列哪组药物___
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【单选题】
肺炎合并心力衰竭有如下表现，但除外___
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【单选题】
关于左心衰竭时呼吸困难，下列哪项是错误的___
A. 最早出现的劳力性呼吸困难
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【单选题】
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【单选题】
室性心动过速的临床特点，下列哪项不符合___
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【单选题】
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【单选题】
诊断室速最有力的心电图证据是___
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【单选题】
二尖瓣狭窄伴房颤，室率160次/分，泊疗首选___
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【单选题】
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【单选题】
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