WHAT IS A TRAUMATIC BRAIN INJURY (TBI)?
A Traumatic Brain Injury (TBI) is typically the result of a bump, blow, or jolt to the head. It can also be caused by a penetrating head injury. Essentially, any external force that causes the brain to move within the head can disrupt normal brain function, leading to loss of consciousness, or being dazed and confused.
Among those who serve in the military, explosive blasts are the primary cause for TBIs.
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CLINICAL SIGNS OF ALTERATION IN BRAIN FUNCTION1
Any period of a complete loss of, or decreased, consciousness
Any loss of memory related to events occurring immediately before or after the injury
Neurologic deficits such as muscle weakness, loss of balance and coordination, disruption of vision, change in speech and language, or sensory loss
Any alteration in mental state at the time of the injury such as confusion, disorientation, slowed thinking, or difficulty with concentration
1 — Cohen Veterans Bioscience. Traumatic Brain Injury. Retrieved February 24, 2016 from this page.