Exam 1 Flashcards
What type of disorders fall under the nervous system?
Seizures
Meningitis
Encephalitis
Parkinson’s
Multiple sclerosis
Migraine and cluster headaches
Cerebral vascular accident (CVA)/stroke
What is a seizure?
An abnormal electrical discharge in the brain. It interrupts normal brain function
Alters awareness, abnormal sensation, focal involuntary movements, or convulsions
What is epilepsy?
A chronic seizure disorder
What are the two different types of seizures?
Generalized
Partial
What is a generalized seizure?
Discharges occurs throughout the entire brain
Typically loss of consciousness
What is a partial seizure?
Only one half of the brain is affected.
Also called a focal seizure
Typically manifest as one structural abnormality
What are causes of seizures?
Genetics
Metabolic disorders
Mitochondrial diseases
Single gene mutation
Structural abnormalities (tumors, edema, increased ICP) ***brain stress
What are the phases of a seizure?
1) prodromal : mood or behavior starts to change (seizure may come in hours or days)
2) aura: premonition of impending seizure (visual, auditory, or gustatory)
3) ictal : seizure activity (usually musculoskeletal)
4) postictal : period of confusion / somnolence/ irritability that happens after the seizure
Manifestations of seizures
-aura
-short duration (1-2 minutes)
-postictal state
-Todd paralysis : in some people, one side of the body is weak and weakness last longer than the seizure
-Visual hallucinations
-Convulsions
How do you diagnose a seizure?
-head CT
-MRI
-EEG
-Lumbar puncture
-Electrolyte study
-Prolactin levels
What medications are used to manage seizure disorders?
Made medication is an anticonvulsant
Examples:
Levetiracetam (Keppra)
Carbamazepine
Oxcarbazepine
Lamotrigine
Phenytoin
Valproic
Fosphenytoin
Gabalentin
What are non-medication options to help manage seizure disorders
-Special diet (ketogenic/Atkins)
-Vagal nerve stimulation
-Implantable neurostimulator
-Lobectomy/lesionectomy
-activity modification/restrictions (driving, climbing, ladders, cooking, power tools/dangerous equipment, swimming, baths)
Nursing diagnoses (risks associated with) seizures
-Risk for trauma or suffocation
-Risk for an effective airway clearance
-Situational, low self-esteem
-Deficient knowledge
-Risk for injury
What history needs to be gathered during a nursing assessment for seizures
-Age they were at onset
-Frequency
-treatments they’ve had
-What are symptoms/manifestations are
What are nursing interventions for a seizure disorders?
-prevent injury
-Maintain airway
-educate patient and family (safety, triggers, compliance with meds)
What is meningitis?
Inflammation (swelling) of the protective membranes, covering the brain and spinal cord. Can lead to ICP
What are the causes of meningitis?
Usually caused by an infection:
Bacterial
Viral
Fungal
Parasitic
Amebic
What are the manifestations of meningitis?
Fever
Seizure
Neck stiffness
Positive Kernig’s sign
Positive brudzinski sign
Neurologic symptoms
Photalgia (photophobia)
What is Positive brudzinski sign?
Lift head up to put chin to chest, with involuntary flexing of hips and knees *a reaction to the stretch)
What is a positive Kernig’s sign?
(inability to extend knees more than 135 degrees)
What is the worst kind of meningitis?
Bacterial meningitis
Specifically; meningococcal
Where is Meningococcal meningitis commonly seen
Communal living situation
College dorm
Military barracks 
What are signs and symptoms of bacterial meningitis?
Fairly sudden onset of the following symptoms
Fever
Headache
Stiff neck
Rush
What are other possible signs of bacterial meningitis?
Nausea/vomiting
Sensitivity to light
Confusion
Drowsiness
Convulsions
Joint pain
Cold hands and feet
,coma
How does bacterial meningitis manifest in children/infants?
Lethargy*****
Poor eating
Difficult to wake
Sleepiness
Crying when handled
Irritability
Grunting or difficulty breathing
Bulging of the frontenelle
High-pitched crying
Convulsions
Vomiting
Pale or blotchy skin
Abnormal reflexes
Coma
What is different about viral meningitis?
-Can be caused by any virus
-Not as severe as bacterial, and can often self resolve
-It can cause lasting neurological deficits
How do you diagnose meningitis?
Lumbar puncture
CBC
Blood culture
Head CT
How do you treat bacterial meningitis?
-Antibiotics
-Control fever and pain
-IVF (IV fluids)
-Possible mechanical ventilation
-Possible ICP monitoring
How do you treat viral meningitis?
-Antiviral medication
-Control pain and fever
-IVF
-Possible mechanical ventilation
What are the main things that need to be assessed for meningitis?
-Neurological status
-Pulse ox
-Arterial blood gas
What are nursing diagnoses (risk of developing) for meningitis
-Infection
-Acute pain
-Impaired physical mobility
-Activity intolerance
-impaired skin integrity
-injury
-Interrupted family process
-Anxiety
What are nursing considerations for treating a patient with meningitis?
-HOB elevated (semi Fowlers position)
-Neurochecks
-Pain assessment
-Limit stimulation (dark, quiet room)
-Manage nausea (vomiting, and increased ICP)
What is encephalitis?
Inflammation of cerebral tissue
What causes encephalitis?
Most commonly caused by the herpes virus
What are manifestations of encephalitis?
Fever
Headache
Nausea/vomiting
Mental status changes
Meningeal signs (stiff neck, photophobia)
Seizures
Motor deficit
Personality changes
Sign of brainstem involvement
What are signs of brain stem involvement?
Nystagmus (eye twitching)
extraocular nerve palsies
Hearing loss
Dysphagia
Respiratory dysfunction
What medications are used to treat encephalitis
Antivirals
Anticonvulsants
Steroids
Pain management
Sedatives
What is Parkinson’s disease?
A degenerative disease that is caused by depletion of dopamine
What does depletion of dopamine lied to my garden Parkinson’s?
-Dysfunction of the extrapyramidal system
-slow, progressive disease, that results in a crippling disability
-Can result in Falls, self-care, deficits, failure of body systems, depression
When does mental deterioration occur in Parkinson’s disease?
In the late stages
What are causes of Parkinson’s disease?
Hereditary
Drug induced (dopamine, depleting drugs)
What are examples of dopamine depleting drugs?
Reserpine
Phenothiazine
Metocloprmide
Tetrabenazine
Droperidol
Haloperidol
What are manifestations of Parkinson’s?
-Bradykinesia
-Akinesia
-monotonous speech
-handwriting become smaller
-Tremors
-Pill rolling
-Rigidity with jerky interrupted movements
-restlessness and pacing
-Mask (blank, facial expression)
-Drooling
-Difficulty swallowing and speaking
-loss of coordination and balance
-Shuffling steps, stooped position, propulsive gait
What are nursing diagnoses (risks of) Parkinson’s disease
-ineffective airway clearance
-Disrupted thought process
-impaired verbal communication
-Impaired physical mobility
-Imbalanced nutrition
-Impaired swallowing
-Risk for injury
-Self-care deficit
How do you diagnose Parkinson’s?
Physical exam
Levodopa challenge (put them on med and see if there’s an improvement)
PET
MRI
What are the medical/medication used to manage Parkinson’s disease?
Levodopa
Neurosurgery
Neurologic implants
PT/OT
How can nurses help manage Parkinson’s disease?
-Assassin neurological status
-Accessibility to chew and swallow
-Diet
-Increase fluid intake do 2000 ML per day
-Monitor for constipation
-Promote independence with safety measures
-Do not rush patient
-Assist with ambulation
-Ambulation devices
-Instruct patient to rock back-and-forth to initiate movement
-Instruct the client to wear low heeled shoes
-lift feet when walking
-Firm mattress ***
-promote proper posture with hands help behind back
-Promote physical therapy and rehabilitation
-Administer in monitor meds
-Avoid foods high in B6
-Avoid monoamine oxidase inhibitors
What is the proper diet for someone with Parkinson’s disease?
High calorie
High protein
High-fiber
Soft
Small
Frequent feedings
NO B6
Why give a firm mattress to a patient with Parkinson’s?
Firm mattress with pt positioned in prone position without pillow to facilitate proper posture
What is multiple sclerosis?
Chronic, progressive, non-contagious, degenerative disease of the CNS
Demyelinization of neurons
What is attacked during multiple sclerosis?
Myelin sheath around the nerves
What are the causes of multiple sclerosis?
Unknown
Might be autoimmune
What are risk factors that can lead to multiple sclerosis
Pregnancy
Fatigue
Stress
Infection
Trauma
Manifestations of MS
-fatigue and weakness
-ataxia (impaired balance or coordination)
-vertigo
-tremors
-Blurred vision and diplopia (double vision)
-nystagmus (dancing eyes)
-Dysphasia
-decreased perception to pain, touch, temp
-bladder and bowel disturbances (urgency, frequency, retention, and incontinence)
-emotional changes (apathy, euphoria, irritability, depression)
-Memory changes and confusion
How to diagnose MS
Lumbar puncture (CSF is high in IgG *imnuno globulin) and Myelin)
EEG
CT
MRI
What is medical management for MS
Corticosteroids
Immunomodulatory agents
Muscle relaxants
Other meds to address individual symptoms
What are nursing diagnosis (risk for) MS
-fatigue
-self-care deficit
-Low self-esteem
-powerlessness/hopelessness
-Risk for ineffective coping
-ineffective, family coping
-Impaired urinary elimination
What are nursing interventions for MS
-provide bedrest during exasperation
-Protect from injury
-Place eyepatch for diplopia
-Monitor for potential complications
-promote regular elimination
-Encourage independence
-Assist client to establish regular exercise and rest
-Instruct the client to balance, moderate activity with rest
-provide assistive devices
-Initiate physical and speech therapy
-Increase fluid in taking a balanced diet
-Safety measures
-Follow meditation routine
What is a migraine headache?
Neurovascular disorder that causes severe head pain
How long do migraines typically last?
4 to 72 hours