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【单选题】
下列哪项不属切口感染的预防措施
A.
术前、术后注意提高病人抵抗力,纠正贫血、低蛋白血症等
B.
术中严格无菌技术
C.
及时局部理疗
D.
避免异物存留
E.
避免切口内血肿
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B.
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C.
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