NUR331 Exam 4 Flashcards
neurological differences in a child
- greatest amount of changes happen in the first year of life
- brain volume is reflected in head circumference
- cerebral blood flow and oxygen consumption is 2x
- progressive motor function
- fontanels allow brain to expand
- BBB is more permeable - more susceptible to infections
- small epidural space - fewer epidural hemorrhages
neuro assessment - extra things to monitor in children
- febrile illness
- animal bite
- crying, irritable
- head circumference (<2)
- is LOC affecting ability to oxygenate?
- gag reflux
- incontinence baseline
- rash
- thermoregulation
- persistence of primitive reflexes
- posturing
What do pinpoint pupils represent?
- poisoning
- brain stem dysfunction
What do fixed and dilated pupils represent?
- brain damage if 5 mins+
babinski reflex
- sole of foot stroked
- fans out toes and twists foot in
- disappears at 9mo-1yr
blinking reflex
- flash of light or puff of air
- closes eyes
- permanent
grasping reflex
- palms touched
- grasps lightly
- weakens at 3mo, disappears at 1yr
moro reflex
- sudden move, loud noise
- startles, throws out arms and legs and then pulls them to the body
- disappears at 3-4mo
rooting reflex
- cheek stroked or side of mouth touched
- turns towards source, opens mouth and sucks
- disappears at 3-4mo
stepping reflex
- infant held upright with feet touching the ground
- moves feet as if they’re able to walk
- disappears at 3-4mo
sucking reflex
- mouth touched by object
- sucks on object
- disappears at 3-4mo
swimming reflex
- placed face down in water
- makes coordinated swimming movements
- disappears at 6-7mo
tonic neck reflex
- placed on back
- makes fists and turns head to the right
- disappears at 2mo
explain ICP change
- volume in brain should remain at an equilibrium
- small increase in one should equal a small decrease in another
- if not, increase in ICP
- causes - tumors/lesions, hemorrhage, edema of cerebral tissue (trauma, fall, shaken, infection), accumulation of CSF in ventricles
CM of increased ICP in a child
- headache
- blurred vision
- diplopia
- pupils sluggish, repines to light
- seizure
- nausea, forceful vomiting
- lethargy
- increased sleeping
- declining school performance
- declining motor function
CM of increased ICP in infants
- tense and bulging fontanel
- separated cranial sutures
- macewen sign (cracked pot)
- high pitched/cat like cry
- increased head circumference
- distended scalp veins
- feeding changes
- crying when held or rocked
- sun set eyes - see a lot of sclera above pupils
- taught and shiny skin over scalp
late signs of increased ICP
- significant decrease in LOC
- decreased motor response to command
- decreased sensory response to pain
- fixed and dilated pupils
- decerebrate posturing - away from midline
- decorticate posturing - towards midline
- very late - high SBP, low HR/RR, high PP
What should the nurse do when responding to an unconscious child?
- ABC
- stabilize spine when indicated
- treat shock
- reduce ICP when indicated
- frequent neuro assessment
- observe pupillary signs and LOC, VS
- pain management
- signs of pain are high HR and BP
- respiratory monitoring
- monitor ICP
- nutrition and hydration
- elimination
- thermoregulation
- positioning, hygiene, meds, stimulation, family support
hydrocephalus
- an excessive collection of CSF in the ventricular system
- same S/S of increased ICP
- first sign - high head circumference
- can be congenital or acquired
- classified as communicating and noncommunicating or obstructive
- management - relief of pressure (shunt), treat the cause, treat complications, promote development
- NC - prevent breakdown of the scalp, monitor for increasing ICP, promote adequate nutrition, keep eyes moist (bulging eyes)
- post op - bedrest with HOB flat and supine, later the HOB may be elevated
- no contact sports, cannot go to the army
- shunt complication - infection
When should an ICP monitor be inserted?
- GCS <7 or GCS>8 with respiratory problems
- deterioration of condition
- subjective judgement regarding clinical appearance and response
EVD nursing considerations
- jugular compression can increase ICP so the patient turning side to side is contraindicated
- keep HOB 15-30 degrees
- ensure drainage system remains level with the patient’s tragus (ventricles)
- assess CSF output every hour
- sudden increase or decrease in output - call surgeon
- make sure all stopcocks are turned correct direction and cords are plugged in appropriatley
TBI
- head injury by mechanical force that effects the meninges, skull, scalp, or brain
- young children are more at risk due to lack of head control and they are more at the mercy of someone else
- infants have decreased myelinization and immature motor function which causes them to fall when left unattended
- toddlers have heads larger than the body which makes them more likely to get injured
- school age kids are most likely to be hit as a pedestrian or while riding a bike
- adolescents engage in risk taking behaviors
- children respond differently because of larger head size, expandable skull, greater volume of blood in the brain, small subdural space, and thinner softer brain tissue
types of TBI
- scalp laceration - superficial but will bleed a lot
- linear skull fx - single crack in school, likely have a bruise on head
- depressed skull fx - broken into several fragments and pushed inward, causes pressure on the brain
- basilar skull fx - break in the base of skull, usually results in a dura tear
basilar skull fx
- may have raccoon eye or battle sign behind ear
- high risk of secondary infection
- avoid invasive procedures that could introduce a pathogen
- leakage of CSF is possible
- do not put anything in nose
- CSF has glucose and will have a halo around it
concussion
- alteration in mental status with or without loss of consciousness which occurs immediately after a traumatic blow to the head
- hallmark signs - confusion and amnesia
- CM - headache, dizziness/unsteady, confusion, disorientation, vision changes/sensitivity to light, nausea, drowsiness, amnesia, sensitivity to noise, tinnitus, irritability, loss of consciousness, hyperexcitability
- when to seek treatment - infant, lost consciousness, won’t stop crying, complains of head and neck pain, vomits repeatedly, difficult to awaken, becomes difficult to console, isn’t walking normally, unusual behavior, bleeding from mouth or nose, CSF leakage
TBI CM
- minor - may or may not lose consciousness, transient period of confusion, somnolence, listlessness, irritability, pallor, vomiting
- severe - signs of increased ICP, retinal hemorrhages, extraocular palsies, hemiparesis, elevated temp, unsteady gait
TBI management
- ABCs
- stabilize neck and spine
- frequent neuro assessment
- hypertonic solutions
- steroids to decrease inflammation
TBI complications
- hemorrhage - epidural and subdural
- infection - posttraumatic meningitis
- brain stem herniation
- hypothalamic dysfunction
- SIADH, DI - cerebral edema
- signs of progression - mental status changes, mounting agitation, development of focal lateral neuro signs, marked changes in VS, Cushing reflex, signs of brainstem involvement
meningitis
- inflammation of the meninges of the brain and spinal cord
- often preceded by ear infection, greater incidence in males
- newborn CM - poor sucking/feeding, apnea, weak cry, diarrhea, tense fontanel, jaundice
- infant CM - fever, poor feeding, n/v, increased irritability, high pitched cry, seizures
- children CM - fever, headache, nuchal rigidity, Kernig’s sign, opisthotonos, seizures, altered sensorium, projectile vomiting, petechial or purpureal rash
- long term complications - blindness/deafness, intellectual disability, hydrocephalus, loss of extremities, cerebral palsy, seizures
- dx - LP results in high WBC, pressure, and protein, decreased glucose and positive culture
- meds - abx if bacterial, anticonvulsants, antipyretics, treat F/E imbalance
- high WBC, low glucose*
- communicability - isolation for first 24hrs, prevent complications, abx, seizure precautions and neuro checks, prevent increases in ICP, monitor for septic shock/circulatory collapse/dilutional hyponatremia/long term sequelae, adequate hydration and nutrition, parental support and reassrance
- prevent - vaccines*
nuchal rigidity, Brudzinski’s sign
chin to chest movement hurts when knees are flexed (meningitis)
Kernig’s sign
hamstring pain when knee and hip are flexed (meningitis)
opsthotonos
arching back (meningitis)
encephalitis
- inflammatory process of the CNS caused by variety of organisms, caused by HSV 1
- initial CM - nonspecific signs, fever, altered mental status, possible seizures
- other CM - can resemble meningitis, lasts few days and have complete recovery or has CNS involvement and doesn’t completely recover or dies
- dx - clinical findings from organism, meningitis rule-out, CT may show hemorrhagic area, blood samples to determine organism
- management - observation and supportive care, low stimulation, high nutrition, same as meningitis
Reye syndrome
- rapidly progressive encephalopathy with hepatic dysfunction which begins several days after “apparent” recovery from viral illness associated with virus and aspirin
- causes fatty changes in the liver, ammonia, builds up in liver dysfunction, and edema occurs
- prodromal, rapid progression, then profuse vomiting with neuro impairment
- meds - muscle paralysis, anticonvulsants, diuretics
- management - ventilation, ICP monitoring, F/E balance, monitor lab studies
- prevent - don’t give aspirin to kids
- NC - monitor BS Q2, seizure prec, monitor for bleeding and liver function, assess for increased ICP Q2, balance fluid intake to prevent dehydration/cerebral edema
epilepsy
- chronic condition with 2+ seizures that were not caused by reversible medical conditions
- classified by type and etiology
- location of electrical dysfunction determines what the seizure activity will look like
- VEEG
- management - antiepileptic drugs, keto diet (high fat low carb - encourages ketones to control seizure activity), give supplemental vitamins, can have a vagus nerve stimulator
- last route - surgery - focal resection, hemispherectomy, corpus callosotomy
- long-term care - educate caregiver on rescue meds, have rescue meds at all places that the child will be, avoid triggers, do not swim/bathe alone, wear helmet when biking, avoid open flames, avoid climbing tall heights, provide patient and family support, help child function to the best of their ability
- risk for injury and risk for aspiration*
febrile seizure
- temp 101+ without known cause of epilepsy, CNS infection, or metabolic abnormalities
- typically tonic clonic that is <15mins
- higher the temp, worse the symptoms
- home care - call EMS if it lasts longer than 5mins, usually not treated with antiepileptic drugs, prolonged can be treated with a benzo