concussion Flashcards
1
Q
explain pathophysiology of concussion
A
efflux of K+ and influx of Ca++ glutamate release increase glusose metabolism decrease cerebral blood flow ENERGY CRISIS 7-10 days
2
Q
who is most susceptible for second impact syndrome? what does it look like? mortalitiy? why? tx?
A
12-15 yo. dramatic loss of consciousness. 50% mortality due to cerebral edema. emergent craniotomy
3
Q
drug to avoid in recovery?
A
benzodiazepines
4
Q
indications for imaging
A
> 30 sec loss of consciousness
GCS < 15 after 2 hours
worsening symptoms
