上消化道出血出现黑便时，出血量至少为（） -题库考试答案搜索网

上消化道出血出现黑便时，出血量至少为（）

单选题

2021-12-27 20:54

A、<5～7ml
B、<50～70ml
C、>50～70ml
D、>5～7ml
E、>250ml

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正确答案

C

试题解析

标签：心血管内科医学检验科住院医师常见症状与体征内科基础知识

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