测试干扰是导致急诊室患者虚假阳性热素T升高的原因
1Northern HSC Trust, Antrim Area Hospital, Bush Road, Antrim BT41 2RL, UK.
心脏中热素T (cTnT) 的升高可能表明心肌损伤,但测试干扰可能导致错误阳性. 第二次托罗邦素I (cTnI) 测试证实真心肌损伤,强调需要进行确认测试,以避免误诊.
科学领域:
- 临床诊断 临床诊断 临床诊断
- 心脏病学 心脏病学
- 生物化学 生化学
背景情况:
- 热素测定对于诊断心肌损伤至关重要.
- 高水平的热波可以是各种因素造成的,包括试验干扰.
- 由于假阳性结果导致心肌损伤的错误诊断可能会导致不必要的患者伤害.
研究的目的:
- 在急诊室患者中验证心脏高灵敏性托波宁T (chsTnT) 升高的准确性.
- 调查测试干扰对chsTnT结果的作用.
- 通过第二个独立的测定来确认真实的心肌损伤,心脏高灵敏度托罗素I (chsTnI).
主要方法:
- 确定了来自两个急诊室的患者,测量了chsTnT水平.
- 超出99百分点上限的chsTnT的样本重新进行了测试.
- 确认测试使用了心脏高灵敏度托罗邦素I (chsTnI) 试验.
主要成果:
- 总共分析了54名患者的74个样本.
- 7个样本 (9.5%) 显示了chsTnI水平低于5 ng/L.
- 这表明测试干扰是这些病例中胆固醇升的原因.
结论:
- 测试干扰导致错误阳性热素结果可能被低估.
- 假阳性结果可能会导致不必要和潜在的有害的调查和治疗.
- 在诊断不确定时,建议进行第二次,替代的激素测定,以确认心肌损伤.
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