ch 30 cerebral dysfunction Flashcards
neuro system differences in children v adults
-brain growth reflected in head circumference
-cerebral blood flow and O2 consumption 2x as much as adults
early S+S increased ICP
-headache
-vomiting
-irritability
-personality changes
-fatigue
S+S increased ICP in infants
-inconsolability
-bulging fontanels
-high pitched cry
-macewen sign (“cracked pot sound”)
-increased sleeping, fatigue
-poor feeding
-vomiting
-sun setting eyes
S+S increased ICP in kids
-headache
-nausea
-forceful vomiting
-blurred vision
-seizures
-diminished physical and school performance
-increased sleeping, fatigue
-changes in personality
late S+S increased ICP in infants/kids
-bradycardia
-decreased motor response to command
-decreased sensory response to painful stimuli
-alterations in PERRLA
-extension/flexion posturing
-decreased LOC
-coma
3 components of glasgow coma scale
-eye opening
-verbal response
-motor response
score interpretations glasgow coma scale
highest = 15
coma = 8 “less than 8 intubate”
lowest = 3
screenings/tests to determine brain function
-blood test (including drug test)
-lumbar puncture
-EEG
-auditory and visual evoked potential tests
-CT and MRI
-nuclear brain scan
common causes head injuries in children
-falls
-motor vehicle accident
-bicycle accident
CHI
closed head injury
types CHI
-concussion
-contusion and laceration
-fractures
-epidural hematoma
-subdural hematoma
-other lesions: subarachnoid, cerebral edema, posttraumatic syndrome
nursing measures to reduce ICP
-calm environment, dark, queit
-elevated hob with head midline
-pad siderails in case of seizures
med that help decrease ICP
mannitol (diuretic)
potential complications of head injuries
-hemorrhage
-infection
-edema
-herniation through brainstem
S+S epidural hematoma
-commonly w/ skull fracture
-arterial bleed
-fast bleed
-sometimes gain consciousness for short period of time
-usually unilateral
S+S subdural hematoma
-venous bleed
-slower bleed
-with retinal hemorrhage
-usually bilateral
S+S hydrocephalus
INFANTS
-rapidly increasing head circumference
-refusal to feed
-sleepiness
CHILDREN
-changes in personality
-developmental regression
-ataxia
-incontinence
signs of progression of a head injury
-altered mental status
-increasing agitation
-development focal lateral neurologic signs
-marked changes in VS