Neurological disorders - exam 3 Flashcards
How does the scoring of the Glasgow Coma Scale work?
Scores range from 3-15; 15 is best and 3 is worst
Babinski reflex
should be positive in infants, but negative in kids 2 and older (some kids loose it after 12 months)
what is Cushing’s triad
-bradycardia
-bradynpea
-wide pulse pressure
(signs of increasing cranial pressure)
What are the 3 areas of evaluation in the glasgow coma scale?
- eye opening (1-4
- verbal response (1-5)
- motor response (1-6)
What is spina bifida?
- a protruding sac anywhere along the spine
- a birth defect where the neural tube fails to close as a fetus (this is why it’s super important for women to take folic acid prenatally AND during pregnancy)
Types of spina bifida (3)
- spina bifida occulta (least severe, often no observable manifestations)
- Meningocele (CSF protrudes from spine)
- Myelomeningocele (spinal cord and CSF protrude from spine. Most severe and most common. Hernial protrusion from spine)
What is the cause of spina bifida?
- unknown causes
- lack of folic acid
Signs and Sx of spina bifida?
- neural tube abnormalities
- **dimpling near buttocks
- hydrocephalus
How do you check for spina bifida in a newborn baby?
-Flip baby on stomach and check for dimple above the anus (indicative of spina bifida)
Signs and Sx of spina bifida occulta
- dark tufts of hair
- dimple (above anus)
- port wine angiomatous nevi (spider angioma)
- soft, subcutaneous lipomas
How and when do you Dx spina bifida?
- prenatal (usu it is Dx in utero btwn 16-18 weeks by measuring fetoprotein in amniotic fluid)
- ultrasound (if it’s not Dx prenatally)
Nursing interventions for spina bifida?
- PREVENTION!!! (recommend folic acid for all women of child bearing age)
- infection control for SB pts (they are more prone to infection)
- surgical prep (lay child on side or prone; keep site moist until surgery)
What is hydrocephalus?
- enlargement of the ventricles due to increase in CSF
- happens due to too much production, or too little absorption of CSF
- this is why it’s important to track head circumference!
What are the signs and Sx of hydrocephalus?
- headache
- bulging eye (“sun-setting”)
- bulging fontanels
- increased head circumference (head feels soft to touch)
- signs of cushing’s triad
What are the nursing interventions for hydrocephalus?
- surgical prep for ventriculoperitoneal shunt (“VP shunt”)
- monitor head circumference
- monitor for seizure activity
- careful position changes (avoid anything that changes pressure or can cause kinks in VP shunt)
What is a “VP shunt”?
- device used to drain fluid from cranial ventricles in children with hydrocephalus
- permanent device! (sometimes is has to be extended or revised as kid grows bigger)
- tube drops down from head to abdomen
- caution for KINKS!!!
What is cerebral palsy?
- group of PERMANENT disorders of development of movement and posture, causing activity limitation, attributed to NONPROGRESSIVE disturbances that occurred in developing fetal or infant brain
- affects movement and speech
- affects voluntary and involuntary muscles
- also involves disturbances of sensation, perception, communication, cognition, and behavior; secondary musculoskeletal problems; and epilepsy
What are the causes of cerebral palsy?
- 70-80% caused by unknonwn prenatal factors
- Often diagnosed in first year of life d/t birth hypoxia or hypoxia in utero
- can occur later in life d/t a hypoxic event (e.g. drowning, collapsing from asthma attack)
- other possible prenatal causes: genetics, congenital infections, prematurity, neonatal encephalopathy
Signs and Sx of Type 1 cerebral palsy?
Type 1 = Spastic aka STIFF type (MOST COMMON/70-80%)
- hyper-reflexia and hypertonia (abnormal increase in muscle tension and a reduced ability of a muscle to stretch)
- muscle spasticity
- toe walking (d/t achilles tendon, muscles are shrunken bc they’re so tight/contractures)
- scissoring (d/t tightness)
- continues to have neonatal reflexes
- scoliosis
Signs and Sx of Type 2 cerebral palsy?
Type 2 = Dyskinetic CP aka INVOLUNTARY MOVEMENTS
- writhing movement (twisting, clenching, random involuntary movement)
- Chorea
- –these Sx usu worsen when person is under stress and get better while sleeping
- trouble speaking (Involvement of the pharyngeal, laryngeal, and oral muscles causing drooling and dysarthria (imperfect speech articulation)
Signs and Sx of Type 3 cerebral palsy?
Type 3 = Ataxic aka SHAKY
- uncoordinated movements (difficults with walking, but muscles aren’t as “tight” as spastic type)
- trouble speaking bc face muscles shake
Nursing interventions for cerebral palsy
- Teaching: no cure but there are multidisciplinary opportunities
- surgery can improve function
- early intervention (PT, OT, SE, early intervention team)
- –promote optimum development
- encourage opportunities for socialization
- teach meticulous dental hygiene
Head injury is defined as:
mild to total brain injury
-mild head injury is falling from standing or anything less than one’s height
pathophysiology of head injuries:
- car accidents
- abusive head trauma (previously called “shaken baby syndome”) - injury occurs on both sides of head
- biking, skiing, hockey, football, etc
What are some signs and Sx of abusive head trauma?
bruising behind eyes, highly irritable
Signs and Sx of head trauma
- *vomiting (big red flag bc this only happens when there’s a concussion (bruise on brain), a bleed, or a seizure
- bruises
- *headache
- dizziness
- lacerations