Common features involve somatic symptoms, physical signs, behavioral or emotional changes, cognitive impairments, and/or sleep disturbances Eighty percent to 90% of symptoms resolve within to 10 days Goal of therapy is physical and cognitive rest Concussion is a clinical syndrome of biomechanically induced brain dysfunction without apparent radiographic injury The panel consensus statement from the 5th International Conference on Concussion in Sport defines concussion as “a traumatic brain injury induced by biomechanical forces.” Several common features that incorporate clinical, pathologic and biomechanical injury constructs that may be utilized in defining the nature of a concussive head injury include: Concussion may be caused either by a direct blow to the head, face, neck or elsewhere on the body with an “impulsive” force transmitted to the head Concussion typically results in the rapid onset of short-lived impairment of neurologic function that resolves spontaneously However, in some cases, symptoms and signs may evolve over a number of minutes to hours Concussion may result in neuropathologic changes, but the acute clinical symptoms largely reflect a functional disturbance rather than a structural injury and, as such, no abnormality is seen on standard structural neuroimaging studies Concussion results in a range of clinical symptoms that may or may not involve loss of consciousness Resolution of the clinical and cognitive symptoms typically follows a sequential course However, it is important to note that in some cases symptoms may be prolonged The use of grading scales for concussion is no longer recommended as there is no evidence that such assignments are predictive of cognitive deficits Current Evidence Evaluation for TBI accounts for more than 800,000 ED visits per year, with approximately 75% of those visits defined as concussion or mild TBI There has been a tremendous emphasis on sports-related concussions and