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A UK based Emergency Medicine podcast for anyone who works in emergency care. The St Emlyn ’s team are all passionate educators and clinicians who strive to bring you the best evidence based education. Our four pillars of learning are evidence-based medicine, clinical excellence, personal development and the philosophical overview of emergency care. We have a strong academic faculty and reputation for high quality education presented through multimedia platforms and articles. St Emlyn’s is a name given to a fictionalised emergency care system. This online clinical space is designed to allow clinical care to be discussed without compromising the safety or confidentiality of patients or clinicians.
Episodes
Wednesday Jul 24, 2024
Ep 238 - Positive and Negative Predictive Values: Critical Appraisal Nugget
Wednesday Jul 24, 2024
Wednesday Jul 24, 2024
In this St. Emlyn's podcast, Rick Body and Greg Yates, continue our exploration of diagnostic test accuracy, shifting our focus to positive predictive value (PPV) and negative predictive value (NPV). These concepts are vital for anyone preparing for exams or looking to enhance their application of diagnostic tests in clinical practice. While our last podcast discussion centred on sensitivity and specificity, PPV and NPV offer a different, arguably more clinically practical perspective on interpreting test results.
Positive predictive value (PPV) and negative predictive value (NPV) are essential tools for understanding the effectiveness of diagnostic tests. PPV helps us determine the likelihood that a patient with a positive test result actually has the condition, whereas NPV helps us gauge the probability that a patient with a negative test result does not have the disease. These values are crucial for making informed clinical decisions, particularly when considering the prevalence of a condition in the population. Today, we’ll delve into these concepts, their practical applications, and why it's important to consider both PPV and NPV alongside sensitivity and specificity.
You can find more about this on the St Emlyn's Blog and please don't forget to like and subscribe.
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