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多项选择题

下列关于骨牵引的注意事项描述正确的是
A、注意牵引两侧有无阻挡，以免减低牵引力
B、注意针眼护理，防止感染
C、注意牵引针有无滑动或将皮肤拉豁
D、防止压迫性溃疡
E、卧床休息，禁止活动肢体，防止意外发生

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