Discharge if:
Asymptomatic after 2-4hr obs (not vomiting, nl neuro exam, nl mental status)<unk>  CT normal (delayed deterioration after normal CT is near zero)
Consider discharge if:
Nondisplaced fracture with out intracranial injury (in consultation with neurosx)
Asymptomatic after 2-4hr obs (not vomiting, nl neuro exam, nl mental status)<unk>  CT normal (delayed deterioration after normal CT is near zero)
Nondisplaced fracture with out intracranial injury (in consultation with neurosx)
Head trauma 
Traumatic brain injury
Blast injury
Intracranial hemorrhage
Traumatic asphyxia
Moderate-to-severe traumatic brain injury
Trauma 
Elevated intracranial pressure