Nuero Flashcards
normal ICP
1-15mmHg
early signs of Increased ICP
more stimulation to get same response, slugs pupils, less strength, tachydcardia, hypertensive swings
late signs of Increased ICP (herniation)
arousable only with deep pain or unarousable, fixed and dilated pupils, posturing or no response, cushion’s response
cushing’s triad
associated with advanced increased ICP: profound bradycardia, abnormal respirations, increased systolic pressure (widened pulse pressure)
paresis
(hemiparesis) weakness to area of body
palegia
(paraplegia) paralysis to an area of body
most to least favorable response to pain
localizing pain, withdrawal, decorticate posture (move to core), decerebrate posture (abnormal extension), flaccid
Reflexes you want to still have
Corneal (eyelid closes), Gag (retch or gag), Swallowing (uvula elevates)
Pathological Reflexes
Grasp reflex, babinski
GCS 13-15
Normal or mild brain injury
GCS 9-12
moderate brain injury
GCS 3-8
profound brain injury
Difuse Axonal Injury
disruption of axons in cerebrum leads to a disconnection of the cortex and brain stem reticular formation. (loss of brain stem reflexes)
Epidural Bleed
between skull and dura matter, usually from middle meningeal artery; often times have a period of unconsciousness followed by lucid period then begin to lose consciousness again; severe headache and hemiparesis and dilated pupil on side of injury
subdural bleed
bleed between dura mater and subarachnoid mater usually from small bridging veins; venous bleed- slower than epidural bleed
subarachnoid bleed
bleed between arachnoid and Pia maters; worst headache of my life; n/v; photophobia, meningeal signs; ca channel blockers to reduce spasms, surgical intervention to reduce ice
battle sign
bruising in the mastoid sinus behind ear, may take 24 hours post injury (posterior fossa basilar skull fx)
raccoon’s sign
periorbital ecchymosis secondary to intra orbital bleeding (anterior fossa basilar skull fx)
Posterior cord
light touch, proprioception, vibration
anterior cord
motor function
lateral cord
pain, temperature
c-4 innervates
diaphragm
c-8
flex fingers
T2-L1
Intercostals- vital capacity