上消化道大量出血是指数小时内失血量超过( )。A.400ml B.500ml C.800ml D.1000ml E.1500ml

作者: tihaiku 人气: - 评论: 0
问题 上消化道大量出血是指数小时内失血量超过( )。
选项 A.400ml B.500ml C.800ml D.1000ml E.1500ml
答案 D
解析 上消化道大量出血是指在数小时内失血量超过1000ml或占循环血容量的20%,主要表现为呕血和(或)黑便,常伴有急性周围循环衰竭。

相关内容:上消化道,指数,小时,A.400ml,B.500ml,C.800ml,D.1000ml,E.1500ml

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