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单选题

心力衰竭细胞是指肺淤血时()。

发布日期:2021-03-12

心力衰竭细胞是指肺淤血时()。
A

肺泡吞噬粉尘的巨噬细胞

B

肺泡内增生脱落肺泡上皮

C

血管内皮细胞

D

肺泡内吞噬含铁血黄素巨噬细胞

试题解析

心力衰竭细胞

心力衰竭细胞(heart failure cells):左心衰竭肺淤血时,有些巨噬细胞吞噬了红细胞并将其分解,胞浆内形成含铁血黄素,此时这种细胞称为心力衰竭细胞。如慢性肺淤血时,肺泡腔中可见肺泡巨噬细胞吞噬红细胞形成的心衰细胞。

中文名
心力衰竭细胞
原因
左心衰竭肺淤血
外文名
heart failure cells
内容物
含铁血黄素

肺淤血

肺淤血(pulmonary congestion)指肺部局部血管出现血液淤积,通常由左心衰竭引起,左心腔内压力升高,阻碍肺静脉回流,造成肺淤血。肺淤血时肺体积增大,呈暗红色,切面流出泡沫状红色血性液体。肺淤血的患者临床表现为气促、缺氧、发绀,咳嗽时咳出大量浆液性粉红色泡沫痰。应积极查找引起肺淤血的原发病,针对病因进行治疗。

就诊科室
呼吸内科
常见病因
由左心衰竭引起
常见发病部位
肺脏
常见症状
气促、缺氧、发绀,咳嗽时咳出大量浆液性粉红色泡沫痰

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