sport concussion Flashcards
mild traumatic brain injury is a _ axonal injury and what word can describe it
diffuse, neuro metabolic storm, energy crisis
difference between diffuse and focal TBI
DIFFUSE type refers to an injury where there has been a widespread disruption of neurological function caused by shearing of neuronal connections. (ie: concussion!)
❑FOCAL type refers to injuries that are more localized (linear acceleration) and potentially life threatening (red flags) caused by increased intracranial pressure
from bleeding (epidural or subdural) or swelling (edema
difference with major TBI and minor TBI
Major TBI (focal injury) -canbecatastrophic
- lesions visible on imaging
- bleeds, increased intra-cranial pressure, etc.
Minor TBI or mTBI (diffuse injury) * debilitating
- not visible with traditional diagnostic imaging - m a y mask signs of more serious injury
direct MOI of TBI
primary impact to the head
indirect MOI of TBI
contrecoup secondary impact
Force applied to other parts of the to the body causing rapid acceleration/deceleration of the brain in the skull.
T/F both direct (coup) or indirect (contrecoup) can lead to either a minor or a major head injury
T
Sometimes the presence of concussion signs makes it difficult to determine _
whether a more serious focal injury exists or will develop.
Depending on the area of the brain that is injured, it can result in a wide range of deficits.
These include changes in
personality, loss of speech, inability to comprehend speech, motor impairment, attention and/or memory deficits to name a few.
Epidural bleeds usually presents initially with _ symptom
concussion-like
Important to remove from play and monitor (within field of vision) especially during first 20-30 minutes post injury.
which one between epidural or subdural bleed tend to develop more slowly
subdural bleed
which type of bleed are most likely to be missed and what do you need to do
subdural, Important to monitor athlete (within field of vision) Especially first 4-6 hours post injury. Must also monitor (close by) first
48-72 hours for any changes or signs.
what is second impact syndrome
Occurs when athlete not fully recovered from initial concussion (within last few weeks) and then receives another one.
Results in a rapid development of cerebral edema leading to brainstem herniation. Most frequently occurs in adolescents and young adults
major update of SCAT 6
Eliminationoft h e5-wordlistinfavorofa 10-wordversion
*Modifying instructions t o the symptoms scale
* AddingatimecomponenttoMonthsinReverse
* Introducinga noptionaldualt a s kTandemGaitmeasure
* Creatinganewsequenceofincreasingcomplexityfortheadministrationof posturalcontrolmeasures
* RevisedReturn-to-SportandReturn-to-Learnprogressions * Enhancedinstructionsandresourcesforclinicians
if concussion sign are evident do you necessary need to perform scat6
no
At a minimum, get GSC done after 10 minutes of rest. Remove, Observe, Rest (
SCAT6 is useful immediately after injury in and utility appears to decrease significantly after _
SCAT6 is useful immediately after injury in differentiating concussed from non-concussed. Utility appears to decrease significantly 3-5 days after injury”.
Immediate Assessment/Neuro Screen:
- Box :1 Red Flags and Step 1: Observable Signs
- Step 2: Glasgow Coma Scale
- Step :3 Cervical Spine Assessment
- Step 4: Coordination &Ocular/Motor Screen
- Step :5Memory Assessment Maddocks Questions
concussion off-field assessment
Step :1 Athlete Background
Step :2Symptom Evaluation
Step :3 Cognitive Screening
Step 4: Coordination and Balance Examination
Step :5Delayed Recall Step 6: Decisio
shen do take resting HR post concussion
10min after
T/F Non-scored Glasgow Coma Scale is performed during determination of LOC in the primary survey.
T
SCAT6 Components performed on-field as a screening tool to help determine
Recognize / Remove / Respond”
where can’t you evoke pain if suspect spinal
above clavicle
if no response at all after pain stimuli what is their Glasgow scale
3/15
secondary assessment on minor TBI include
SAMPLE, full body scan, vitals, GCS baseline score Detail of secondary assessment is symptom dependant Determine if concussion signs present: somatic, cognitive or emotional changes/impairment?
what is pupil normal diameter in bright light
2-4mm
usually asses what with perla
acuity, reflexe, field
how do you test visual acuity and what does it test
Check acuity of one eye at a time
with and without vision aids. Near and far vision
Visual acuity testing examines the integrity of the optic nerves (CN2) and the optic pathways, including the visual cortex.
how do you test pupillary reflex
Hand place vertically to block non-tested eye. Use penlight to test. Asymmetry between the pupils is a key to abnormalities
what is direct and indirect reflex of eyes
Direct reflex- same eye constricts ▪ Indirectreflex-oppositeconstricts
(consensual reflex)
how do you test visual field
VISUAL FIELD -Ask athlete to look directly at you.
Wiggle one of your fingers in each of four quadrants
Ask to identify which finger is moving
Check visual attention by moving both fingers at same time
eye movement are controller by which nerve
CN, III, IV, VI
how do you test extra ocular movement
Ask the athlete to follow a finger or pen with the eyes.
This tests cranial nerves 3 (oculomotor), 4 (trochlear), and 6 (abducens).
CN3 mediates medial deviation and all other directions of movement not coordinated by CN4 and CN6.
CN4 innervates the superior oblique muscle and mediates medial downward gaze.
CN6 innervates the lateral rectus and mediates lateral gaze.
Observing convergence of the eyes as an object is moved closer indicates function of the
medial rectus muscle and CN3 innervation
utilize what to fully assess all direction of gaze
H pattern