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This page (revision-9) was last changed on 15-Oct-2013 13:55 by 1614216108

This page was created on 17-Apr-2012 12:54 by UnknownAuthor

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%%tab-活化蛋白C抵抗试验
  中文名称:活化蛋白C抵抗试验 \\
  英文名称:[activated protein C resistance,APC-R]\\
%%tab-活化蛋白C抵抗试验(APCR)
  中文名称:活化蛋白C抵抗试验(APCR) \\
  英文名称:[Activated protein C resistance,APC-R]\\
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   在健康人血浆中加入APC后,由于APC可使FⅤa和FⅧa灭活,故可使APTT明显延长。若在待测血浆中加入APC后,其APTT不延长或延长不明显,则称为活化蛋白C抵抗(activated protein C resistance,APC-R)。在被检血浆中加入FⅫ激活剂、部分凝血活酶、Ca2+和活化蛋白C(APC),由于APC使FⅤa和FⅧa灭活,导致APTT延长。若被检血浆中存在APC-R(如FV Leiden突变等),则APTT延长不明显。\\
   通过比较加APC(APTT+APC)和不加APC(APTT-APC)的APTT比值即活化蛋白C敏感度比值(activated protein C-sensistivity ratio,APC-SR)的大小可判断APC-R存在与否。将被检标本与对照血浆的APC-SR相除,可得标准化APC-R(n-APC-SR)。n-APC-SR误差更小。\\
   在健康人血浆中加入APC后,由于APC可使FⅤa和FⅧa灭活,故可使APTT明显延长。若在待测血浆中加入APC后,其APTT不延长或延长不明显,则称为活化蛋白C抵抗(activated protein C resistance,APC-R)。在被检血浆中加入FⅫ激活剂、部分凝血活酶、Ca2+和活化蛋白C(APC),由于APC使FⅤa和FⅧa灭活,导致APTT延长。若被检血浆中存在APC-R(如FV Leiden突变等),则APTT延长不明显。\\
__有何用途:__\\
   检测APC-R对血栓性疾病的诊断有意义。
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  检测APC-R对血栓性疾病的诊断有意义。引起APC-R的原因可能是:①存在APC抗体;②存在APC的某种抑制物;③蛋白S缺乏;④由于基因突变等导致FⅤa和FⅧa不被APC灭活等。
引起APC-R的原因可能是:①存在APC抗体;②存在APC的某种抑制物;③蛋白S缺乏;④由于基因突变等导致FⅤa和FⅧa不被APC灭活等。
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APC-SR>2.0, n-APC-SR>0.84。
APC-SR>2.0\\
n-APC-SR>0.84
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%%tab-医学决定水平
无。
/%
%%tab-危急值范围
无。
/%
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  通过比较加APC(APTT+APC)和不加APC(APTT-APC)的APTT比值即活化蛋白C敏感度比值(activated protein C-sensistivity ratio,APC-SR)的大小可判断APC-R存在与否。将被检标本与对照血浆的APC-SR相除,可得标准化APC-R(n-APC-SR)。n-APC-SR误差更小。\\
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无特殊要求。
一般无特殊要求。
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采集后立即送检。
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[出血和血栓性疾病]\\[临床血液学检验]
[凝血活性]
Version Date Modified Size Author Changes ... Change note
9 15-Oct-2013 13:55 1.068 kB 1614216108 to previous
8 15-Oct-2013 13:54 1.056 kB 1614216108 to previous | to last 活化蛋白C抵抗试验 ==> 活化蛋白C抵抗试验(APCR)
7 21-Dec-2012 12:38 1.056 kB 1614216108 to previous | to last
6 11-Jul-2012 12:22 1.08 kB 1614216108 to previous | to last
5 11-Jul-2012 12:22 1.07 kB 1614216108 to previous | to last
4 03-May-2012 13:15 1.093 kB 1614216108 to previous | to last
3 25-Apr-2012 15:24 1.085 kB 1614216108 to previous | to last
2 19-Apr-2012 16:35 1.06 kB 1614216108 to previous | to last
1 17-Apr-2012 12:54 0.926 kB UnknownAuthor to last
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