男性，28岁。一天前出现发热，恶心呕吐，腹泻7次，伴里急后重。便培养示志贺痢疾杆菌生长。其腹泻的发生机制是（） -题库考试答案搜索网

男性，28岁。一天前出现发热，恶心呕吐，腹泻7次，伴里急后重。便培养示志贺痢疾杆菌生长。其腹泻的发生机制是（）

单选题

2021-12-25 23:57

A、肠黏膜的吸收面积减少或吸收障碍
B、黏膜炎症、溃疡等致血浆、黏液、脓血渗出
C、肠蠕动亢进致肠内食糜停留时间少
D、胃肠黏膜分泌过多的液体
E、肠内容物渗透压增高

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正确答案

B

试题解析

志贺菌引起的感染，限于肠胃道，很少侵入血液。志贺菌附着在肠上皮细胞，破坏肠黏膜而造成溃疡，进而导致血浆、黏液、脓血渗出。

标签：基础知识综合练习传染病学基础知识肾内科综合复习题肾内科基础知识血液病基础知识血液病主治医师呼吸内科基础知识综合复习题呼吸内科基础知识

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