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当前学科：外科损伤病人的护理
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男性，野外工作者，在树林中被蛇咬伤后，局部皮肤留下一对大而深的齿痕且伤口出血，周围皮肤迅速出现瘀斑、血泡。为减慢毒素的吸收，患肢应（）
A . A.限动并下垂
B . 抬高
C . 局部热敷
D . 加压包扎
E . 局部按摩
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