小孩流鼻血不能仰头--杨远锋的博客

小孩流鼻血不能仰头

[ 2011-3-2 12:32:00 | By: 杨远锋 ]

流鼻血的原因很多，但是约有一半人找不出原因。鼻腔黏膜中的微细血管分布很密，是很敏感且脆弱的，容易破裂而致出血，在学龄前的幼儿常见鼻出血的现象。
    流鼻血时，一般人都习惯于将头向后仰，鼻孔朝上，认为这样做可以有效止血，其实是错误的，如此做只是看不见血外流，但实际上血还是继续的在流——在向内流。
    流鼻血时“后仰的姿势”有下列的坏处：
    1、会使鼻腔内已经流出的血液因姿势及重力的关系向后流到咽喉部，并无真正止血效果。
    2、咽喉部的血液会被吞咽入食道及胃肠，刺激胃肠黏膜产生不适感或呕吐。
    3、出血量大时，还容易吸呛入气管及肺内，堵住呼吸气流造成危险。

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原创

[ 2016-9-6 17:15:44 | By: 原创(游客) ]

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原创

[ 2016-9-28 16:51:22 | By: 原创(游客) ]

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原创

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