TBI Flashcards
what is a traumatic brain injury
“A traumatic brain injury is caused by a bump, blow, or jolt to the head or a penetrating head injury that disrupts the normal function of the brain.”
-Categorized as mild (concussion), moderate, or severe
what % of TBI =’s have lasting effects
-15% of TBI’s have lasting effects
-Can have physical, psychological, or social
consequences
incidence
-Annually, 69 million people worldwide will suffer from a TBI
-81% will be considered mild concussions
-11% will be considered moderate concussions
-89% of concussions may go unassessed by medical
professionals
-TBI’s are more common in North America and
Europe (per capita)
-North America 1,299 reports per 100,000 people
-Europe 1,012 reports per 100,000 people
age ranges most likely to obtain TBI in united states
➢ 0-4
➢ 15-19
➢ 65+
➢ After the first concussion, chances of getting a second concussion are 3-6 times greater
major causes of TBI in US
➢ 15% being struck by or against a force ➢ 15% caused from other/unknown ➢ electrocution, explosions, exposure to radiation ➢ 14% from traffic accidents ➢ 9% caused by assault
sport and concussions
➢ Concussions account for 5% of all sporting injuries
➢ In a Canadian study, hockey nearly doubled the
number of TBI’s compared to cycling, football/rugby
and ski/snowboard
➢ 60% of concussions reported were from males
diagnosing a TBI
➢Must be accessed quickly ➢Various types of evaluations include: ➢Glasgow Coma Scale ➢CT Scan ➢MRI ➢Intracranial pressure monitor ➢Consciousness
glascows coma scale
➢ 15 point scale ➢ 1st step used in an emergency room ➢ Checks the person's ability to follow directions and movement of their eyes and limbs ➢ The greater the score = the less severe the brain injury is ➢13-15 = mild TBI (concussion) ➢9-12 = moderate TBI ➢8-1 = severe TBI
CT scan
➢ The 1st imaging test performed ➢ Displays: ➢Visual fractures ➢Evidence of bleeding in the brain ➢Blood clots ➢Bruised brain tissue ➢Brain tissue swelling ➢If swelling is noticed further proceed with Intracranial Pressure monitor
intracranial pressure monitor
➢If the brain has noticeable tissue swelling
➢Swelling of the brain can increase pressure
inside the skull
➢Can lead to further brain damage
➢Insert a probe through the skull to monitor the
brain pressure
MRI
➢Creates a detailed view of the brain
➢Only used if:
➢ The person’s condition stabilizes
➢Symptoms don’t improve soon after injury
ways to determine the severity of a TBI
-After diagnosing a traumatic brain injury, it is important to determine the severity of the injury and understand what symptoms may accompany each level of injury.
symptoms of TBI
➢ Blurred vision ➢ Confusion (mental state changes) ➢ Dazed ➢ Dizziness ➢ Focal neurologic symptoms ➢ Headache ➢ Nausea
mild severity
➢ Loss of consciousness of momentary to less than 30 minutes
➢ Post-traumatic anterograde amnesia of momentary to less than 24 hrs
➢ Depressed, basilar or linear skull fracture (dura intact)
moderate-severe severity
➢ Death due to this TBI
➢ Loss of consciousness of 30 minutes or more
➢ Post-traumatic anterograde amnesia of 24 hours or more
➢ Worst Glasgow Coma Scale: full score in first 24 hours
(unless invalidated upon review, eg., attributable to
intoxication, sedation, system shock)
➢ Intracerebral hematoma
➢ Subdural hematoma
➢ Epidural hematoma
➢ Hemorrhagic contusion
➢ Penetrating TBI (dura penetrated)
➢ Subarachnoid hemorrhage
➢ Brain stem injury