Patients with normal neurologic exam NOT on anticoagulation do not need a repeat head CT
Recommend 6 hour observation
Patients with GCS 13 or higher may not need a NSGY consult, regardless of antiplatelet or anticoagulation, as long as agent properly reversed
Recommend 6 hour observation
Traumatic intracerebral hemorrhage
Intra-axial
Subdural hemorrhage
Hemorrhagic stroke 
Traumatic hyphema
Subarachnoid hemorrhage
Extra-axial
Subdural empyema