Emergency physicians use diagnostic tests extensively, and the ability to order and interpret test results appropriately is a critical skill. An understanding of sensitivity, specificity, predictive values and likelihood ratios, as well as an awareness of the importance of pre-test probability, is essential. The purpose of this article is to explain, in a straightforward and clinically applicable manner, the core concepts related to diagnostic testing.

译文

:急诊医师广泛使用诊断测试,正确地定购和解释测试结果的能力是一项关键技能。对敏感性,特异性,预测值和似然比的理解以及对测试前概率重要性的认识是必不可少的。本文的目的是以一种直接且可临床应用的方式来解释与诊断测试有关的核心概念。

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