METHODS: An online case-based CME activity was developed on the application of clinical guidelines for treatment of VTE. The effects of education were assessed using a linked pre-assessment/post-assessment study design. For all questions combined, the McNemar’s chi-square test was used to assess differences from pre- to post-assessment. P values are shown as a measure of significance; P values <.05 are statistically significant. Cohen’s d was used to calculate the effect size (>0.8 are large, 0.8-0.4 are medium, and <0.4 are small).