药理学求答案

1．药物与血浆蛋白的结合（ ）A．是可逆的

2．量反应的量效曲线（ ）B．横坐标为药物对数浓度，纵坐标为药物的效应，呈对称的S形曲线

3．影响药物从体内排泄的因素不包括（ ）
C．药物剂量

4．促进药物生物转化的主要酶系统是（ ）B．细胞色素P-450酶系统

5．通过激动α受体产生的效应是（ ）D．瞳孔扩大
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6．治疗量阿托品不会引起（ ） C．中枢兴奋，焦虑不安
阿托品竞争性拮抗ACh或胆碱受体激动药对M胆碱受体的激动作用。

7．不属于琥珀胆碱作用特点的是（ ）B．过量可引起呼吸麻痹
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8．肾上腺素对心脏的作用是（ ） B．激动β1受体，使心率加快，心肌收缩力加强，传导加快
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9．异丙肾上腺素不具有的作用（ ） D．收缩支气管粘膜血管
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10．酚妥拉明扩张血管的原因是（ ）B．阻断α受体
【药效学】本品为α—受体阻断剂。能显著降低外周血管阻力，增加血容量，增加组织血流量，改善微循环，改善内脏血流灌注，其作用比妥拉苏林强。
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11．治疗焦虑症最好选用（ ）B．地西泮

12．与苯二氮类药物比较，巴比妥类镇静催眠的缺点是（ ）D．抑制呼吸

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13．苯妥英钠的体内药物动力学的特点为（ ） B．可静注和肌注给药
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14．左旋多巴治疗肝昏迷是由于（ ） A．在脑内脱羧生成多巴胺
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15．由于长期应用氯丙嗪，使多巴胺受体上调而产生的副作用是（ ） D．迟发性运动障碍
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16．有关吗啡的描述错误的是（ ） D．抑制全身各种感觉，包括痛觉
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17．吗啡引起瞳孔缩小的机理是（ ） D．激动中脑盖前核的阿片受体
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18．阿司匹林引起的凝血障碍可用何药预防（ ）A．鱼精蛋白
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9．对急性心肌梗塞引起的室性心动过速，首选（ ）D．利多卡因
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20．强心苷正性肌力作用的发生机制是（ ）B．抑制心肌细胞膜Na+，K+-ATP酶