Traumatic Brain Injury + Scales Flashcards
HIGHEST incidence of TBIs
MVA’s, falls, high risk behaviors (m>w), GSWs
Types of TBI?
Open vs Closed
Primary vs Secondary (sig bc widespread dmg)
Types TBI:
Open Injury
What is it, Dmg, Ex.
- DIRECT penetration THRU skull to brain
- Damage: depends on loc, depth, pathways involved
Ex. GSW, knife, direct truama
Types TBI:
Closed Injury
What is it? Dmg? Ex?
- NO penetration
- Ex’s: Contusion, concussion, hematoma, hypoxia, OD, near drown, accel/decel inj’s
Types TBI:
Primary
- INITIAL inj to brain from impact
- Coup Lesion– Direct lesion of brain under point of impact
- Contrecoup Lesion (Rebound Effect)– Inj on OPP side of brain (back)
Ex. skull penetration, contusion to gray/white matter
Types TBI:
Secondary
Exactly what it sounds like
- Damage as a response to Initial inj
- Epidural Hematoma– hemorrhage bw skull & Dura mater
- Subdural Hematoma– hemorrhage due to venous rupture bw dura & arachnoid
Ex’s: hematoma, hypoxia, ischemia, incd ICP, post-trauma epilepsy
Lvls of Consciousness
From UNCONCSCIOUSNESS TO CONSCIOUSNESS
Coma->Stupor->Obtundity->Delirium->Clouding of Consciousness->Consciousness
Lvls of Consciousness
From UNCONCSCIOUSNESS TO CONSCIOUSNESS
Coma->Stupor->Obtundity->Delirium->Clouding of Consciousness->Consciousness
Lvls of Consciousness
Coma
State of unconscoiusness & lvl of unresponsiveness to ALL int/ext stimuli
Lvls of Consciousness
Stupor
State of General unresponsiveness w/ arousal occurring from repeated stim
Lvls of Consciousness
Obtundity
State of Consciousness–state of sleep, reduced alert to arousal, delayed response to stim
Lvls of Consciousness
Delirium
State of Consciousness–Disorientation, confusion, agitation, loudness*
Lvls of Consciousness
Clouding of Consciousness
State of Consciousness–quiet behavior, confusion, poor attn, delayed responses
Lvls of Consciousness
Consciousness
State of alertness, awareness, orientation, memory
Concussions!
Usually from -
Blow to the head
Concussion Details
- MAYBE temporary LOC
- Dmg to Reticular Activating System (RAS)==immed changes in Vitals
- Secondary to acute trauma
Concussion Grades-American Academy of Neurology
Grade 1
- Head inj w/ NO LOC, SOME transient confusion
- Sx’s resove 15mins–may exhibit full memory of event
- REMOVE athlete from play–RETURN if sx free 1 week
Concussion Grades-American Academy of Neurology
Grade 2
- MOD head injury w/ transient confusion >15mins
- Poor concentration, retro/aterograde amnesia
- REMOVE athlete immed–medical eval—-CT if sx’s worsen
- RETURN TO PLAY—asymptomatic 2wks @ rest AND w/ exertion
Concussion Grades-American Academy of Neurology
Grade 3
- Head inj w/ ANY form LOC
- ER transport–full neuro eval
- Hospitalize if altered consciousness or mental status persists
- Athlete w/held after Grade 3—-RETURN once Sx free 1mo MIN
Grade 3 concussion 2 diffuse axonal injury—-potential coma
RLA Lvls of Cognitive Functioning (goes worse to better)
Name out the Lvls
Coma Lvl
Lvl I: No response
Lvl II: Generalized Response
Lvl III: Localized response
Lvl IV: Confused-Agitated
Lvl V: Confused-Inappropriate
Lvl VI: Confused-Appropriate
Lvl VII: Automatic-Appropriate
Lvl VIII: Purposeful-Appropriate
RLA Lvls of Cognitive Functioning
Lvl I: No response
Coma lvl
DEEP coma—> NO resp to ANY stimuli
RLA Lvls of Cognitive Functioning
Lvl II: Generalized Response
Coma lvl
- Sleeps MOST of time, awake briefly
- Responses/Body mvmts are reflexive, NONpurposeful
RLA Lvls of Cognitive Functioning
Lvl III: Localized Response
Coma lvl
- Alert greater than brief pds
- Reacts to commands INconsistently BUT…
- Responds to specific types of stimuli (Ex. touch produces w/draw)
RLA Lvls of Cognitive Functioning
Lvl IV: Confused-Agitated
- Behavior==marked confusion & agitation as awareness INCs–> aggressive, inapprop.
- Speech incoherent
- **Not able to actively participate in tx d/t lack of attn
- Cannot perform ADLs (eat, brush)**