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试述咯血的概念。

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2021-09-04 03:37
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正确答案

咯血是指喉部以下的呼吸器官出血,经咳嗽动作从口腔排出。每日咯血量在100mL内者属小量咯血;咯血量在100~500mL者属中等量咯血;咯血量超过500mL者属大量咯血。大咯血是危及患者生命的急症,若血块阻塞呼吸道引起患者窒息则立即危及生命。


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