This episode will discuss the NEXUS study. NEXUS was a study that studied thousands of patients to validate a set of rules so that we can "clinically clear" patients with possible c-spine injury without getting an x-ray. This study has helped us avoid radiation in certain low-risk patients, saved the cost of x-rays and CT scans, and speed these patients through the ED. We'll talk a lot about the statistical side of this study and how you can apply it in your everyday practice.