Faith, a 17-year-old soccer player, had a collision with another player and lost consciousness for a few minutes. When she regained consciousness, she was dizzy and had a headache. She was confused and began to vomit, which prompted her to go to the emergency room for evaluation. She was diagnosed with concussion, a form of mild traumatic brain injury (TBI). In addition to those presented in the case study, what are the clinical manifestations associated with mild traumatic brain injury? Discuss the diagnosis and the standard management for TBI.