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Flashcards in Concussion Deck (14)
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1

MOI for TBI

-direct/indirect trauma
-acceleration/deceleration forces
-sport related trauma
-falls
-abuse
-mvc

2

glasgow scale- mild mod severe scores

mild- 13-15
mod-9-12
severe- 3-8

3

2 motor responses in TBI

1. decorticate (abnormal flexion)- upper brainstem lesion
2. Decerebrate ( abnormal extention)- one/both corticospinal tracts

4

factors that effect severity of TBI

-mechanism + trauma
-loss of consciousness
-hemotoma
-increased intra cranial pressie
-region of brain effected

5

Canadian CT head rule: Ct required if

-age 65+
-vommiting >2x
-skull fracture
-GCS <15
-reterograde amnesia

6

Difuse axonal injury

-white marks throughout the cortex
-widespread axonal sheering
-more severe than hematonas/hemorages

7

Epidural hemotoma

-accumulation of blood b/w dura + skull
- Patient may have LOC followed by lucid interval which exam is normal
-slow accumulation of blood (sudden herniation)

8

Subdural hematoma

Acute (48-72hrs)
-bleeding in subdural space
-severity based on accumulation of blood

9

What does increase intracrainal pressure lead to and how to relieve it

-increased risk of herniation
- head down position to relieve

10

sequale of moderate and sever TBI (5)

1. Neuromuscular- abnormal muscle tone, sensory inpairment, motor function impairment

2. Visual- double vision

3. Cognitive- altered LOC/ alertness, mem loss, altered orientation

4. Behavioural- imoulsiveness, agressiveness

5. Communication- impaired reading, writting, expression

11

Neurometabolic cascade (4 steps)

1. Acute ionic flux (surge of energy use than difuse depression like state
2. Attempt to restore homeostasis- metabolic overdrive + reduced cerebral blood flow
3. Depletion of energy stores= metabolic uncoupling
4. Impaired metabolic state can last up to 7-10 days

12

When should an athlete be removed from play

-if indv. reports any of the cardinal s+s (preasure felt in head, dizziness, nausea, balance
- if indv. demonstrates reduced level or alertness

13

concussion care model (3 step)

1. physician led + monitored care (1-2w)
2. Appropriate + timely referals for rehab
3. Reassesment approx. every 1-2 w untill discharge

14

RTP protocol (6 step)

1. symptom limited activity
2. light aerobic exercise
3. sport-specific exercise
4. non contact training drills
5. full contact prac
6. Normal game