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This page (revision-7) was last changed on 03-Dec-2012 11:54 by 1614216108

This page was created on 09-Apr-2012 16:59 by UnknownAuthor

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__项目介绍 :__\\
   镰状细胞贫血是出现异常HbS的常染色体显性遗传疾病,当血氧过低时HbS相互聚集形成多聚体,当足够的多聚体形成时,红细胞即由双面凹盘状变成镰刀型,镰变的红细胞僵硬变形性差,容易被破坏,并使血液粘滞性增加。镰状细胞溶解度试验是利用血红蛋白液在连二亚硫酸钠磷酸盐溶液中,HbS经连二亚硫酸钠还原去氧后在磷酸盐溶液中溶解度下降,HbS出现沉淀,通过检测去沉淀后血红蛋白的量的变化得到HbS的含量百分率。\\
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  1.还原去氧血红蛋白溶解度减低是HbS的特性,血红蛋白S病的杂合子溶解度为35%-68%,纯合子为6%-23%。\\
  2.HbCHarlem Hb-Trais等可溶解度下降出现阳性结果。\\
  3.出生6个月以下的婴儿此试验不能检测出HbS病,可出现假阴性结果。\\
1.还原去氧血红蛋白溶解度减低是HbS的特性,血红蛋白S病的杂合子溶解度为35%-68%,纯合子为6%-23%。\\
2.HbCHarlem Hb-Trais等可溶解度下降出现阳性结果。\\
3.出生6个月以下的婴儿此试验不能检测出HbS病,可出现假阴性结果。\\
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健康人血红蛋白溶解度为88%-100%。
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无。
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无。
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%%tab-影响因素
一、项目介绍\\
   镰状细胞贫血是出现异常HbS的常染色体显性遗传疾病,当血氧过低时HbS相互聚集形成多聚体,当足够的多聚体形成时,红细胞即由双面凹盘状变成镰刀型,镰变的红细胞僵硬变形性差,容易被破坏,并使血液粘滞性增加。镰状细胞溶解度试验是利用血红蛋白液在连二亚硫酸钠磷酸盐溶液中,HbS经连二亚硫酸钠还原去氧后在磷酸盐溶液中溶解度下降,HbS出现沉淀,通过检测去沉淀后血红蛋白的量的变化得到HbS的含量百分率。\\
  二、方法学评价\\
%%tab-方法学评价
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  病人准备:\\
  无特殊要求。\\
  标本采集和运送要求:\\
  肝素抗凝全血标本。\\
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%%tab-病人准备
无特殊要求。\\
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%%tab-标本采集和运送要求
肝素抗凝全血标本。\\
/%
/%
Version Date Modified Size Author Changes ... Change note
7 03-Dec-2012 11:54 0.802 kB 1614216108 to previous
6 03-Dec-2012 11:54 0.8 kB 1614216108 to previous | to last
5 12-Jul-2012 17:05 0.796 kB 1614216108 to previous | to last
4 03-May-2012 16:06 0.807 kB 1614216108 to previous | to last
3 25-Apr-2012 11:12 0.785 kB 1614216108 to previous | to last
2 12-Apr-2012 14:21 0.786 kB 1614216108 to previous | to last
1 09-Apr-2012 16:59 0.763 kB UnknownAuthor to last
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