Seizures Flashcards

1
Q

Seizure

Epilepsy

A
  • periods of abnormal electrical discharges in brain that may cause involuntary movement or behavior, or sensory alterations
  • chronic disorder characterized by recurrent seziures secondary to CNS disorder
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2
Q

Seizure pathophysiology

A
  • abnormal excessive concurrent electrical discharges from cortical neuronal netowrk of cells
  • when multiple neurons become excited, they discharge abnormally
  • can be caused by environmental, physical stimuli, CNS infection, ypoxia, and brain trauma
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3
Q

Focal Seizures

A
  • partial seizures

- abnormal electric activity in 1 hemisphere, most often in temporal, frontal, or parietal lobes

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4
Q

Generalized seizures

A
  • electrical activity that begins on both hemisperes simultaneously
  • spasm movements are bilateral and symmetric
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5
Q

Febrile seizures

A
  • generalized seizures tha occur during rapid increase of temperature
  • associated wth acute illness
  • seen between 3 months-5 years
  • often a family history is present
  • Tonic clonic manifestations less than 15 mins
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6
Q

Risk factors for infants developing epilepsy

A
  • median age 5-6 yrs
  • SGA
  • neurological syndrome
  • brain tumor/infections
  • stroke
  • cp
  • autism
  • FH
  • drug abuse
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7
Q

Tonic Phase manifestations

A
  • unconsciousness, and continous muscular contraction
  • BMR increases, increases demand for oxygen and glucose
  • may become pale and cyanotic as result of hypoxia
  • hypoglycemic
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8
Q

2 types of seizures

A
  • partial (focal)

- Generalized (tonic clonic)- most common in children

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9
Q

Clonic Phase

A

-alternating muscular contraction and relaxation

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10
Q

Postictal Period

A
  • following seizure activity

- decreased LOC, sleepy but arousable

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11
Q

Auras

A
  • early warning sign of seizure
  • sensory alteration such as odor, taste, or vision
  • if feeling aura, pt should get on floor to prevent injury during seizure
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12
Q

Simple Partial Seizures Etiology

A

-involves activation of only part of one cerebral hemisphere

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13
Q

-Simple Partial Seizures manifestations

A
  • no alteration in consciousness
  • muscle movements may be restricted to one area
  • may have abnormal sensations or hallucinations
  • tachycardia, flushing, hypotension or hypertension
  • sense of deja vu or fear or anger
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14
Q

Simple partial seizure therapies

A
  • antieleptic meds
  • maintain safety
  • assess manifestations and document
  • vagal nerve stimulation therapy
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15
Q

Complex partial seizure etiology

A

-same as simple partial, but usually in temporal lobe

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16
Q

Complex partial seizure manifestations

A
  • aura of visual, auditory, smell or psychic
  • impaired consciousness that last several hours
  • repetitive activity such as lip smacking, aimless walking, or picking at clothing called automatisms
  • amnesia
17
Q

Complex partial seizure therapies

A
  • antiepileptic meds

- maintain client safety

18
Q

Absence seizures (petit mal) etiology

A

-both hemispheres of brain as well as deeper structures such as thalamus, basal ganglia, and upper brainstem

19
Q

Absence seizures (petit mal) manifestations

A
  • impaired LOC
  • sudden brief cessation of motor activity with blank stare and unresponsiveness
  • common in children
  • last 5-10 sec, as long as 30 sec
  • occasional to several hundred a day
20
Q

Absence seizure (petit mal) therapies

A
  • antiepileptic meds

- maintain safety

21
Q

Tonic clonic seizures etiology

A

-most commonly seen in adults

22
Q

Tonic clonic seizures manifestations

A

-aura such as visual, gustatory, visceral, or sense or uneasiness
-sudden loss of consciousness
-tonic phase: sharp muscle contraction forcing air out of lungs, which may make client cry out, pupils fixed, incontinence, breathing ceases, last about 15-60 sec
-Clonic phase: alternating contraction and relaxation, hyperventilation, eyes roll back froths at mouth, aout 60-90 sec
Postical Phase: unconscious and unresponsive, relaxed breathing, confused and disoriented upon waking, tired, amnesia

23
Q

Tonic Clonic seizure therapies

A
  • antiepileptic meds
  • client safety
  • suspension of driving
  • helmets
  • dont restrain
  • pad bedrails
  • diazepam, lorazepam, or phenobarbital
24
Q

Status Epilepticus etiology

A
  • continuous seizure lasting longer than 30 mins

- requires immediate intervention

25
Q

Status Epilepticus manifestations

A
  • continuous seizure activity
  • can be any type,usually tonic clonic
  • client in great danger of hypoxia, acidosis, hypoglycemia, hyperthermia, and exhaustion
26
Q

Status Epilepticus therapies

A
  • maintain airway
  • administer 50% glucose to prevent hypoglycemia
  • diazepam, or lorazepam IV, repeat every 10 mins until seizure stops
  • antiepileptics such as phenytoin
  • phenobarbital
27
Q

2 ways AEDs act

A
  • raise seizure threshold

- limit spread of abnormal activity in brain

28
Q

Goal of AED treatment

A

-protect the client from harm and to reduce or prevent seizure activity without impairing cognitive function or producing undesirable side effects

29
Q

Febrile Seizure treatment for children

A
  • usually not treated with anticonvulsants
  • Parental education on keeping fever low with antipyretics, keeping child cool and light clothing, and protect child from harm
  • may have second seizure and treated with rectal diazepam
  • if seizure last longer than 10mins, child needs to be monitored for electrolytes, glucose, blood gass, increasing fever, and abnormal blood pressure.
30
Q

Intraceable seizures

A
  • seizures that continue to occur even with optimal medical management
  • common in children
  • often treated with multiple anticonvulsants and regular blood test
31
Q

Ketogenic diet

A
  • used for children under 8 yrswith myoclonic and absence seizures
  • high fat, protein, low carbs
  • calories increased 75% and fluids decreased 80%
  • causes ketosis which produces anticonvulsant effects
  • common complications include constipation (treated with medium chain triglycerides), hyperlipdemia, and kidney stones (treated with increase fluid intake)
32
Q

Surgery for seizures

A
  • remove tumor, lesion or portion of brain that is causing seizure, particularly when seizures are not responsive to meds
  • cerebral hemispherectomy on children with intractable epilepsy
  • vagal nerve stimulator for children who are unable to tolerate multiple medications and not candidates for surgery
33
Q

Nursing Diagnosis for Seizures

A
  • Ineffective Breathing Pattern
  • Ineffective Airway Clearance
  • Risk for Trauma
  • Chronic Low Self-Esteem
  • Anxiety
  • Ineffective Therapeutic Regimen Management
  • Readiness for Enhanced Family Process
34
Q

Assessment before, during and after seizure (10)

A

1) what was the LOC?
2) what was the client doing prior seizure?
3) in what part of body did seizure start?
4) what there an epileptic cry?
5) automatisms? such as eye flutter, lip smacking, chewing
6) how long did it last? did movements involve both sides?
7) did head or eyes turn to side? which side?
8) were there changes in pupillary reactions?
9) if the client fell,was the head hit
10) was there foaming or frothing from the mouth?