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缺铁性贫血除贫血外的症状

来源:华人健康网 | 发布时间:2011-02-01 18:23:35 | www.chinesejk.com
缺铁性贫血除导致血红蛋白合成减少外,且使血红蛋白所担负的造氧的作用受到影响。因此缺铁性贫血时,可出现贫血的共有症状,如头昏、乏力、心悸、气短及面色苍白等。同时由于铁参与机体组织细胞代谢所需的很多含铁酶及辅酶的构成,因此缺铁时,因这些酶及辅酶的活力降低,可引起其它非血液学改变,如皮肤干燥、皱褶和萎缩、毛发干枯、易脱落、缺少光泽、指甲凹陷、反甲(匙状甲)、舌炎、口角炎、胃炎、粘膜炎、胃酸缺乏、吞咽困难及胃肠道出血、异食癖、厌食(占75)。儿童因体格及智力发育受影响,可有行为不集中、智力发展低下,对各种感染抵抗力减低,甚至有肝、脾、淋巴结肿大等。

(编辑:小珊 )

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