OUTLINE

• Introduction: An Approach to the Art of Medical Diagnosis
• An Equation for the Use of Diagnostic Tests: "What we thought before" + "Test information" = "What we think after"
• Maximizing Your Pretest Probability Estimates: "What we thought before"
• Sensitivity, Specificity, Predictive Value, & Likelihood Ratios Explained: "Test information"
• Putting the Equation Back Together Using Likelihood Ratios: "What we think after"
• Summary