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This page (revision-4) was last changed on 11-Jan-2013 13:43 by 1614216108

This page was created on 15-May-2012 14:30 by 1614216108

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  英文名称:\\
  英文名称:[Urobilin]\\
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  结合胆红素随胆汁排泄进入肠道,在肠道细菌的作用下,先脱去葡萄糖醛基,再逐步还原为尿胆原,粪胆素等,从肠道重吸收的尿胆原,大部分经肝转化为结合胆红素再排入肠腔,小部分尿胆原则从肾小球滤过或肾小管排出为尿胆原。无色尿胆原经空气氧化及光照后成黄色的尿胆素。\\/%
  尿胆素由尿胆原氧化后生成,可使尿呈深黄或橙红色,其临床意义基本同尿胆原,但其 临床应用不及尿胆原。\\
__何时检测:__\\
  对黄疽的鉴别,尿液标本定性,仅作尿胆红素和尿胆原“尿二胆”即可;不过,当尿胆原检验出现阴性时,就完全有必要做尿胆素的检测,如后者也为阴性,则是真正的尿胆原和尿胆素阴性。如果尿液标本十分新鲜,也可只做尿胆原检查。
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||指标||正常人||溶血性黄疸 ||肝细胞性黄疸||阻塞性黄疸
||指标||正常人||溶血性黄疸||肝细胞性黄疸||阻塞性黄疸
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%%tab-医学决定水平
  无。
/%
%%tab-危急值范围
  无。
/%
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  标本采集:一般留取中间段的尿液标本(即中段尿)。留尿方式可分为晨尿(包括首次晨尿和二次晨尿)和随机尿两种。标本的采集取决于临床医师的送检目的、病人的状况和试验要求。理想情况下,为了达到筛查、检出分析物和有意义的有形成分的目的,应收集浓缩尿液。一般要求住院病人留取首次晨尿;门诊、急诊患者可留取晨尿或随机尿。尿量:10~15 ml,约留样杯(50ml)半杯左右。尿标本须洁净,应避免异物的混入。男性一般要求避免精液、前列腺液的污染(特殊情况除外),女性最好冲洗外阴后再留取中段尿。如医生有特殊要求,可按医嘱留取标本。\\
标本采集:尿胆素测定应留取随机尿或定时新鲜尿标本。\\
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  标本的运送:尿液留样杯上需粘贴患者标识号,该标识号可以是条形码,也可以是申请单的联号。如果是条形码应包含患者姓名、检验目的、标本类型、标本采集日期等信息。\\
标本运送:收集好标本后应立即送检。\\
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%%tab-注意事项
  因检测反应受蛋白质的影响,所以污染月经、阴道分泌物及大量血液、精液的标本应拒收。
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Version Date Modified Size Author Changes ... Change note
4 11-Jan-2013 13:43 0.691 kB 1614216108 to previous
3 22-May-2012 16:12 0.926 kB 1614216108 to previous | to last
2 22-May-2012 16:12 0.929 kB 1614216108 to previous | to last
1 15-May-2012 14:30 1.053 kB 1614216108 to last
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