ACUTE ILLNESS   Acute illness is by definition a self-limiting disease which is mostly characterized by the symptoms having a rapid onset. These symptoms are fairly â¦ intense and resolve in a short period of time as either cure or death in the patient.
Definition. Traumatic brain injury (TBI) is a nondegenerative, noncongenital insult to the brain from an external mechanical force, possibly leading to permanent or temporary impairment of cognitive, physical, and psychosocial functions, with an associated diminished or altered state of consciousness.
[This agency, the Brain Injury Network, had asked them to change their definition, which formerly stated that TBI was also known as ABI, to stating that TBI was a form of ABI. They agreed.] NINDS now says that Traumatic Brain Injury (TBI) is a form of ABI.