首页/ 题库 / [单选题]男性,52岁,原有劳累型心绞痛,近2周来的答案

男性,52岁,原有劳累型心绞痛,近2周来每于清晨5时发作,疼痛持续时间较长入院,住院期间发作时心率50次/分,早搏4~5次/分,血压95/60mmHg,心电图Ⅱ、Ⅲ、aVFST段抬高,加用硝苯地平后未再发作,应用硝苯地平机制是()

单选题
2021-12-28 02:49
A、减慢心率,降低心肌耗氧
B、增快心率,增加心排,改善心肌供血
C、缓解冠脉痉挛
D、提高血压,改善心肌灌注
E、增快心率,消除早搏
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正确答案
C

试题解析

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