 All trauma patients arriving in the trauma bay with an ETC combitube or King LT-D in place will be included. The Trauma Chief resident andor Andrea Williams, Trauma Program Specialist, will identify patients coming into the UWHC ED with supralaryngeal airways. They will concurrently or retrospectively within 72 hours collect data from the subjects chart or WISCR. Many of the patients arrive as unidentified persons with unknown ages. Therefore, pediatric patients will also be included. In addition, most have no consentable family readily available and the patients will not have their clinical course altered in any way by being part of this study. 