弥散性血管内凝血 Flashcards

0
Q

dic的概念

A

指在某些致病因素作用下,机体凝血系统被激活,大量可溶性促凝物质入血,而引起的以凝血功能障碍为主要特征的病理过程. 首先是血液处于高凝状态,随后大量凝血因子和血小板被消耗,转变为低凝状态而引起出血倾向。

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1
Q

dic的英文名字是什么

A

disseminated intravascular coagulation

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2
Q

dic的发病机制

A

血管内皮细胞损伤
组织严重破坏
血细胞大量破坏
其他促凝物质进入血液 (羊水,蛇毒。。。)

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3
Q

dic时机体的病变

A

1)凝血功能障碍 —— 出血
a/凝血物质大量消耗
b/继发性纤溶系统的激活
c/FDP形成
d/血管壁损伤
2)循环功能障碍——休克
3)脏器微血栓形成——脏器功能不全
4)微血管病性溶血性贫血 (micro-angiopathic hemolytic anemia MHA)

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