Session 3: Use and Interpretation of Diagnostic Tests

Learning Objectives:

  • Identify and employ the appropriate test characteristics of the history and physical to determine pretest probability
  • Illustrate how to determine pretest probability and use likelihood ratios to determine post-test probability
  • Identify errors in determining pretest probability
  • Identify and discuss anchoring as a cognitive error
  • Apply concepts of diagnostic verification

 

Cases

Use and Interpretation of Diagnostic Tests Case 3

Use and Interpretation of Diagnostic Tests Case 4


Readings

1) Evidence Based Physical Diagnosis: Introduction toDiagnostic Testing

2) Sackett: Clinical Epidemiology

Please use the above primers to become familiar with the concepts of pretest probability, sensitivity, specificity and likelihood ratios before coming to this session so that we can talk about errors made in the interpretation of diagnostic tests. The first reading should suffice but if you want a more in depth understanding, you can use the second text as a supplement.

 3) Introduction to Clinical Prediction Rules and Practice Cases

                - Describe in what settings Clinical Prediction Rules are used

                - Understand the steps in deriving and validating a clinical prediction rule

                - Apply a clinical prediction rule to a patient case scenario

                - Describe pitfalls and challenges to using Clinical Prediction Rules



For reference:

User’s Guide to Medical Literature

Old Clinical Prediction Rules


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PC/SM Chief Resident,
Apr 28, 2016, 11:19 AM
Ċ
PC/SM Chief Resident,
Apr 28, 2016, 11:19 AM
Ċ
PC/SM Chief Resident,
Apr 28, 2016, 11:20 AM
ĉ
PC/SM Chief Resident,
Apr 28, 2016, 11:20 AM
ĉ
PC/SM Chief Resident,
Apr 28, 2016, 11:20 AM
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