标本/阴性对照比值

<p class="MsoNormal"><strong><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;">酶联生物</span></strong><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;">立足于生命科学领域，全力打造高品质生命科技产品链和技术服务链，立志成为科学研究领域的问题解决专家。</span><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p> <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;">&ldquo;优质的产品，周到的服务&rdquo;是酶联生物<font face="Calibri">&nbsp;</font><font face="宋体">的核心理念；</font></span><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p> <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;">&ldquo;协同发展，多元共赢&rdquo;是酶联生物的价值观；</span><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p> <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;">&ldquo;以客户需求为中心，以一整套服务与全方位产品来满足客户的需求；是酶联生物<font face="Calibri">&nbsp;</font><font face="宋体">的运营模式。</font></span><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p> <p class="MsoNormal"><span style="background-color: rgb(204, 255, 204);"><span style="color: rgb(255, 0, 0);"><strong><span style="font-family: 宋体; font-size: 9pt;"><font face="宋体">标本</font>/<font face="宋体">阴性对照比值 </font></span></strong></span></span><span style="color: rgb(204, 255, 204);"><strong><span style="font-family: 宋体; font-size: 9pt;"><font face="Calibri">&nbsp; &nbsp;</font></span></strong></span><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p> <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;"><font face="宋体">在实验条件（包括试剂）较难保证恒定的情况下，这种判断法较为合适。在得出标本（</font>S<font face="宋体">）和阴性对照（</font><font face="Calibri">N</font><font face="宋体">）的</font><font face="Calibri">A</font><font face="宋体">值后，计算</font><font face="Calibri">S/N</font><font face="宋体">值。也有写作</font><font face="Calibri">P/N</font><font face="宋体">的，这里的</font><font face="Calibri">P</font><font face="宋体">不代表阳性（</font><font face="Calibri">positive</font><font face="宋体">），而是病人（</font><font face="Calibri">patient</font><font face="宋体">）的缩写，不应误解。为避免混淆，更宜用</font><font face="Calibri">S/N</font><font face="宋体">表示。</font></span><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p> <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;"><font face="宋体">在早期的间接法</font>ELISA<font face="宋体">中，有些作者定出</font><font face="Calibri">S/N</font><font face="宋体">为阳性标准，现多为各种测定所沿用。实际上每一测定系统应该用实验求出各自的 </font><font face="Calibri">S/N</font><font face="宋体">的阈值。更应注意的是，</font><font face="Calibri">N</font><font face="宋体">所代表的阴性对照是不含受检物质的人血清。</font></span><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p> <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;">有的试剂盒中所设阴性对照为不含蛋白质或蛋白质含量较底的缓冲液，以致反应后产生的本底可能较正常人血清的本底低得多。</span><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p> <p class="MsoNormal"><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;"><font face="宋体">因此，这类试剂盒规，如</font>N&lt;0.05<font face="宋体">（或其他数值），则按</font><font face="Calibri">0.05</font><font face="宋体">计算，否则将出现假阳性结果。</font></span><span style="mso-spacerun:'yes';font-family:宋体;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:9.0000pt;mso-font-kerning:1.0000pt;"><o:p></o:p></span></p>