lecture 6: head trauma , seizures, headache and vertigo Flashcards
(135 cards)
what is the primary external cause for a TBI
falls
TBI rates of death were highest for people ____ years of age
> 75
what is the leading cause of a TBI related death from a
>65
25-64
5-24
0-4
falls
intentional self harm
motor vetichle crashes
assaults
what scale is used for TBI screen and assess eyes opening , verbal response and best motor response
glasgow coma scale
what is the total scare for the glasgow coma scale ? and what is worse and what is better
3-15
3 is worse (dead basically)
15 is normla
75% of cases of TBI’s are ___
concussion/mild
if someone has a glasgow coma scale of 13-15 what does that indicate
mild tbi
how is a mild tbi/concussion defined
trauma that messes that brain up and is manifested by one of these things …
any LOC
loss of memory befor or after
change in mental status
focal neurologic deficits
if someone has a GCS score of 9-12 whst can we indicate
moderate TBI
what kind of TBI is Usually associated with prolonged LOC +/- neurologic deficit
moderate
if someone has a GCS of <8 what can we suspect
severe TBI
if a pateitns is obtunded or comatose , has significant neurologic injury , often structural brain lesions apparents on head trauma and needs airway protection , mechanical ventilation, or intracranial pressure monitoring what kind of TBI can we susapect
severe
how is the recovery for a severe TBI
prolonged and often incomplete
what is the difference between a penetrating and non penetrating head injury
penetrating is when the skull and meninges are breached and a non pent is the soft tissues are forced into the hard skull
ex: bullet going into head (pen) … getting hit with an elbow during a basketball game (non)
what is the difference between coup and counter coup
coup is where the injury takes place and counter coup is where the brain hits the skull and is usually worse then koo
ex: if u hit ur head on the table the coup is ur forehead but the counter coup is th back of ur head here the brain hit it
what is the first phase of a TBI
direct consequence of trauma
diffuse axonal injury
what is the second phase of a TBI
– Begins quickly after primary phase
– Hypoxia and hypoperfusion
– Inflammation
what is the neurological assessment for a head injury
glasgow coma sale
what is anisocoria
pupil size difference
what are the localizing signs for a head injury
• Anisocoria (pupil size differences)
• Diplopia due to CN palsies
• Absence of gag (glossopharyngeal -> vagal)
• Abnormal breathing patterns
if someone has a head injury and their pupils are dilated , fixed what is damages
CN 3 (uncal)
if someone has a brain injury are their pupils are large , “fixed”, hippus what is damaged
pretectal
if someone’s pupils are pinpoint after a head injury what is damaged
pons
if the pupils are in midposition and fixed after a brain injury what is damaged
midbrain