相关试题
【单选题】
下列哪项是右心室肥大的心电图改变___
A. RI＞1.5mV
B. RaVL＞1.2mV
C. RaVR＞0.5mV
D. 心电轴左偏
【单选题】
诊断心肌梗死最可靠的心电图改变是___
A. ST段抬高呈弓背向上型
B. 冠状T波
C. QRS时间≥0.12s
D. 病理性Q波
【单选题】
在V1、V2、V3导联出现心肌梗死特征性心电图，应定位的梗死部位为___
A. 前侧壁
B. 前间壁
C. 广泛前壁
D. 下壁
【单选题】
下列哪项可肯定为病理性Q波___
A. aVR导联QS型
B. Ⅱ导联Q波振幅等于同导联R波1/6
C. aVF导联Q波时限0.02s
D. V1、V2、V3导联呈Qr型，Q波时限0.06s
【单选题】
符合室性期前收缩的是___
A. QRS波群宽大畸形，时间≥0.12s
B. 早搏的P-R间期≥0.12s
C. 代偿间歇多呈不完全性
D. 多在窦性停搏后出现
【单选题】
不符合房室交界性期前收缩的是___
A. 提前出现的QRS波群形态宽大畸形，时间＞0.12s
B. 提前的QRS前后可见逆行P′波
C. QRS前后可无逆行P′波
D. 代偿间歇常为完全性
【单选题】
下列哪项不是Ⅱ度Ⅰ型房室传导阻滞的表现___
A. P波规律出现
B. 常出现QRS宽大畸形
C. P-R间期逐渐延长
D. 在一个P波后有QRS脱落
【单选题】
频发性期前收缩是指期前收缩的数量在___
A. 3次/分以上
B. 5次/分以上
C. 8次/分以上
D. 10次/分以上
【单选题】
窦性心律时，P波必定是直立的导联是___
A. Ⅱ导联
B. Ⅲ导联
C. aVR导联
D. V5导联
【单选题】
心室扑动的论述不确切的是___
A. P-QRS-T波群消失
B. 正弦曲线波形较规则
C. 常是室颤前奏
D. 心室扑动较室性心动过速和心室颤动的病情程度轻
【单选题】
并非Ⅱ度Ⅱ型房室传导阻滞的是___
A. P波规律出现
B. P-R间期恒定在正常范围
C. P-R间期逐渐延长
D. 下传的QRS波群可正常、亦可宽大畸形
【单选题】
下列哪项不符合典型预激综合征心电图表现___
A. P-R间期＜0.12s
B. P波为逆行性
C. QRS时间≥0.11s
D. QRS起始部粗钝形成△波
【单选题】
24哪项不符合阵发性室性心动过速的心电图表现___
A. 连续≥3个的室性期前收缩，频率150～220次/分
B. 节律基本整齐
C. QRS宽大畸形，时间＞0.12s
D. P与QRS无固定关系，各自按其规律出现
【单选题】
下列哪项不是室性期前收缩的心电图特点___
A. 提前出现QRS-T，其前无提前出现的P波
B. QRS与正常窦性者相同
C. 提前出现QRS-T中的T波与QRS主波方向相反
D. 代偿间歇完全
【单选题】
如下哪一种X线的特性是X线成像的基础___
A. 穿透性
B. 荧光效应
C. 摄片效应
D. 电离效应
【单选题】
如下哪一种X线的特性是进行透视检查的基础___
A. 穿透性
B. 荧光效应
C. 摄片效应
D. 电离效应
【单选题】
如下哪一种X线的特性是X线照片的基础___
A. 穿透性
B. 荧光效应
C. 摄片效应
D. 电离效应
【单选题】
如下哪一种X线的特性是放射防护学和放射治疗学的基础___
A. 穿透性
B. 荧光效应
C. 摄片效应
D. 电离效应和生物效应
【单选题】
消化道造影常用的造影剂是___
A. 硫酸钡
B. 氯化钡
C. 碘化油
D. 碘剂
【单选题】
临床中影像科常用哪种物质作为屏障以吸收不必要的X线___
A. 铝或含铝的物质
B. 锌或含锌的物质
C. 铅或含铅的物质
D. 铁或含铁的物质
【单选题】
X线的哪种特性对人体有损害作用___
A. 穿透性
B. 荧光效应
C. 感光效应
D. 电离效应
【单选题】
X线透视的优点不包括___
A. 经济简便
B. 可随意变动病人体位，可观察器官的运动功能
C. 可作复查时前后比较
D. 能及时得出诊断性结论
【单选题】
下列哪项不符合肺气肿的X线表现___
A. 胸廓呈桶状，肋间隙增宽
B. 肺纹理稀疏
C. 肺野透光度增强
D. 双膈影升高．
【单选题】
诊断胃溃疡的直接征象是___
A. 痉挛性切迹
B. 幽门狭窄
C. 蠕动增强
D. 龛影
【单选题】
某患者肺部X线表现为高密度点状或结节状阴影，病灶应属于___
【单选题】
一典型大叶性肺炎病人，发病三天后入院，其X线征象为___
A. 肺纹理普遍增多
B. 肺段或肺叶淡薄模糊阴影
C. 肺段或肺叶大片均匀致密影
D. 双肺炎症伴有蜂窝状透亮区
【单选题】
X线检查上的跳跃征见于___
A. 贲门痉挛
B. 溃疡型肠结核
C. 结肠癌
D. 肠梗阻
【单选题】
药物的副作用是指___
A. 药物剂量过大引起的反应
B. 长期用药所产生的反应
C. 药物在治疗量时产生与防治作用无关的反应
D. 药物产生的毒理作用，是不可预知的反应
【单选题】
药物的副作用是在下列哪种情况下发生的___
A. 极量
B. 治疗剂量
C. 最小中毒量
D. 病人体质特异
【单选题】
受体激动剂的特点是___
A. 具有亲和力
B. 具有内在活性
C. 具有亲和力而无内在活性
D. 兼有亲和力和内在活性
【单选题】
受体阻断剂的特点是___
A. 具有亲和力而没有内在活性
B. 兼有亲和力和内在活性
C. 不具有亲和力和内在活性
D. 具有内在活性而无亲和力
【单选题】
治疗量是指___
A. 最小有效量
B. 最小有效量和最小中毒量之间的剂量
C. 最小有效量和极量之间的剂量
D. 小于极量
【单选题】
药物的首过消除影响药物的___
A. 作用强度
B. 持续时间
C. 肾排泄
D. 药物的消除
【单选题】
药物的吸收是指___
A. 药物进入胃肠道
B. 药物随血液分布到各组织
C. 药物从给药部位进入血液循环
D. 药物与作用部位结合
【单选题】
药物在体内的生物转化和被机体排出体外统称为 ___
【单选题】
药物的排泄过程是___
A. 药物的彻底消除过程
B. 药物的重吸收过程
C. 药物的再分布过程
D. 以上都不是
【单选题】
药物的肝肠循环可影响 ___
A. 药物作用发生的快慢
B. 药物的药理活性
C. 药物作用持续时间
D. 药物的分布
【单选题】
药物血浆半衰期是___
A. 药物被机体吸收一半所需的时间
B. 药物在血浆中浓度下降一半所需的时间
C. 药物被代谢一半所需的时间
D. 药物排泄一半所需的时间
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【单选题】
His salary as a driver is much higher than ________.
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【单选题】
_____ these honours he received a sum of money.
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B. But
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Would you let ____ to the park with my classmate, Mum?
A. me go
B. me going
C. I go
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