单项选择题
案例分析题
患者，65岁。以呼吸困难、发绀、恐惧、烦躁不安而急诊人院，诊断为：心脏病合并心力衰竭。
患者烦躁不安，为防止患者受伤应采取的保护措施是（）。
A.使用绷带
B.使用肩部约束带
C.使用双侧床挡防止坠床
D.使用双膝固定防止坠床
E.使用腹部约束带
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