The SCRAP rule: The Derivation and Internal Validation of a Clinical Decision Rule for Computed Tomography of the Chest in Blunt Thoracic Trauma

OBJECTIVE: To derive and internally validate a clinical decision rule that will rule out major thoracic injury in adult blunt trauma patients, reducing the unnecessary use of chest computed tomographic (CT) scans. METHODS: Data were retrospectively obtained from a chart review of all trauma patients presenting to a Canadian tertiary trauma care centre from 2005 to 2008, with those from April 2006 to March 2007 being used for the validation …