问题
单项选择题 A1/A2型题
肺心病患者洋地黄类强心剂的用量是常规剂量的（）
A.等量
B.1倍
C.小于1/2
D.大于2/3
E.1/2～2/3
答案
参考答案：E
解析：肺心病患者对洋地黄类药物耐受性很低，疗效差，易引起中毒，强心剂的剂量宜小，约为常规剂量的1/2～2/3。
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肺心病患者洋地黄类强心剂的用量是常规剂量的（）
A.等量
B.1倍
C.小于1/2
D.大于2/3
E.1/2～2/3
参考答案：E
解析：肺心病患者对洋地黄类药物耐受性很低，疗效差，易引起中毒，强心剂的剂量宜小，约为常规剂量的1/2～2/3。
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