Head injuries Flashcards
concussion
mild form of TBI
- might or might not involve LOC
how does one get a concussion?
direct contact and/or acceleration/deceleration forces
- a direct blow to the head doesnt have to occur
MOA of a concussion
injury causes stretching of axons leading to a metabolic cascade
whiplash injury
injury of inertia
coup: bone hits the frontal region of brain
contrecoup: bone hits the occipital region of the brain
dashboard injury
injury of momentum
coup: frontal region of brain hits the skull
contrecoup: occipital region of brain hits the skull
epidemiology of TBI
MVA (45%) falls occupational recreational assults
who has a higher risk of having a TBI
women in everysport
GCS low/high
high- 15
low- 3
components of the GCS
eye opening
best verbal response
best motor response
hallmarks of concussin
confusion and amnesia
- usually can recall what happened before and after event
early signs of concussion
confusion amnesia HA N/V vacant stare lack of coordination etc
late findings
- emotional reactions out of proportion to circumstances
- cog, sleep, mood disturbances
grade 1
transient confusion
NO LOC
symptoms resolve within 15 min
grade 2
transient confusion
NO LOC
persist longer than 15 min
grade 3
any LOC