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患者女性,55岁。由于过度兴奋而突发心绞痛,最适宜的用药是(  )。

单选题
2022-04-20 18:00
A、盐酸普鲁卡因胺口服
B、硫酸奎尼丁口服
C、盐酸利多卡因注射
D、硝酸甘油舌下含服
E、苯妥英钠注射
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正确答案
D

试题解析

硝酸甘油舌下含服可以直接松弛血管平滑肌,特别是小血管平滑肌,使全身血管扩张,外周阻力减少,静脉回流减少,减轻心脏前后负荷,降低心肌耗氧量,解除心肌缺氧。用于心绞痛急性发作,也用于急性左心衰竭。

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