【多选题】【消耗次数：1】
硝酸甘油与普萘洛尔合用治疗心绞痛的结果是
①
协同降低心肌耗氧量
②
消除反射性心率增加
③
缩小增加的心室容积
④
延长射血时间
⑤
房室传导加快
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相关题目
【单选题】
普萘洛尔治疗心绞痛时，下面描述错误的是
①
阻断β受体，抑制心脏，降低心肌耗氧量
②
增大心室容积，延长射血时间，能相对增加心肌耗氧量
③
促进氧合血红蛋白的解离，增加组织供氧
④
抑制心肌收缩力，减小心室容积，缩短射血时间，降低心肌耗氧量
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硝酸甘油抗心绞痛的机理主要是（ ）。
①
减慢心率，降低心肌耗氧量
②
抑制心肌收缩力，降低心肌耗氧量
③
阻断β受体，降低心肌耗氧量
④
选择性扩张冠脉，增加心肌供血
⑤
扩张动脉和静脉，降低耗氧量
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