L17 Other CNS Flashcards
____ of annual workplace assaults occur in healthcare fields
75%
Preventative Actions to Violence
recognize early signs of agitation
1:1 sitter
attending to basic needs
seatbelt alarms
distraction
Indication for seclusion or restraint
imminent danger to others
imminent danger to self
profound disruption of tx or damage
You must have a ____ to restrain
MD order
documentation and reeval of need
Timing of Restraints
no longer than 4 hours for adults
no longer than 2 hours for 9-17 yo
no longer than 1 hour for <9 yo
pts should be monitored once and hour and moved at regular intervals
Types of restraints
hand mitts
soft loth limb restraints
enclosed beds
belts and vests
chemical restraints
use the least restrictive method necessary to correct the issue
Pathogenesis of Subdural Hematoma
trauma, fall, blow to head can result in tear of bridging veins
these veins pass through subdural potential space, if torn will cause venous blood to accumulate in space
blood accumulation happens slowly over time
sufficient accumulation of blood causes pressure increase
Mass effect
sufficient accumulation of blood, the pressure increases causing displacement of intracranial structures
Risk factors for subdural hematoma
cerebral atrophy
anti-thrombotic medication
infants
Cerebral atrophy
makes bridging veins more susceptible to shear injury
common in older adults, chronic alcohol use, previous TBI
Infants and subdural hematoma
cannot absorb shock of being shaken due to weak neck muscles
Epidural Hematoma
rapidly expanding with arterial blood
can happen with skull fracture
Brain herniation
occurs when mass effect is severe enough to push intracranial structures from one compartment to another
this can occur due to hematoma, intracranial tumor, edema in brain
CP of Acute epidural hematoma
high velocity impact
associated with other injuries
minutes to hours for symptom onset
symptoms of increased pressure
explosive headache, altered mental status, cranial nerve palsies, nausea, change to vital signs, coma
subdural hematoma CP
minimal to low force trauma
over several days to weeks after trauma event
headache, cognitive impairment, decreased alterness, worsening balance, then signs of increased intracranial pressure
Medical Dx of Hematoma
CT scan without contrast
SDH will have crescent shape and concave hyperdensity
may see displacement of intracranial structures