Symptoms of a TBI can be mild, moderate, or severe, depending on the extent of the damage to the brain. The pressure in the brain, also known as intra-cranial pressure (ICP), is constantly monitored in the hospital after a traumatic brain injury has occurred. The problem with increased ICP is that the fluid under pressure tends to deform the brain itself and pushes tissue in such a way as to cause injury to the brain itself. This increase in pressure and shift in the brain can worsen the recovery of the individual. MRI or CT scans are frequently taken at the emergency room or during follow-up care, can often show the shifting of the tissue because of the increased pressure in the skull. Cognitive evaluations are performed by a Neuropsychologist with formal testing and are designed to test your mind, judgment, understanding, and alertness. Evaluations by physical, occupational and speech therapists help clarify the specific deficits of an individual. Medical management of TBIs includes pressure and swelling management, medications, mechanical ventilation, physical therapy, and sometimes surgery.