week 4 - seizures Flashcards

1
Q

What defines a seizure?

A

A seizure is an excessive and synchronous discharge of a group of cortical neurons leading to a clinically discernible event.

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2
Q

What is epilepsy?

A

Epilepsy is a chronic brain disorder characterized by recurrent, unprovoked seizures.

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3
Q

Name the three features that classify seizures.

A

1) Onset (where they start in the brain)
2) Awareness (affected or not)
3) Symptoms (such as movement involvement)

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4
Q

What are the types of seizures?

A

1) Focal Onset
2) Generalized Onset
3) Unknown Onset

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5
Q

What tests are used to evaluate seizure disorders?

A

CT, MRI, EEG, serum anticonvulsant levels, and bloodwork.

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6
Q

What is the purpose of antiseizure medications?

A

o depress abnormal neuronal discharges and prevent the spread of seizures.

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6
Q

What is Status Epilepticus?

A

Prolonged seizures lasting more than 5 minutes or repeated seizures over 30 minutes—a medical emergency.

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7
Q

What is important to monitor when a patient is on antiseizure medications?

A

Renal and liver function, signs of toxicity, and maintaining therapeutic serum levels.

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8
Q

What should you do if a patient has a seizure?

A

Stay with them, protect their head, loosen clothing, do not restrain them, and turn them to the side if possible.

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9
Q

What safety measures should be taken for a patient at risk for seizures?

A

Oxygen and suction equipment, padded side rails, and a patent airway.

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10
Q

What are the four stages of a seizure?

A

1) Prodromal
2) Aura
3) Ictus
4) Postictal

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11
Q

What are key points to include in patient education for those on antiseizure medications?

A

Take medications as prescribed, avoid alcohol, wear a medical alert bracelet, and maintain good oral hygiene.

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12
Q

What are the four stages of seizures?

A

Prodromal, Aura, Ictus, Postictal.

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13
Q

What nursing interventions can support a patient with epilepsy?

A

Educate on safety, medication adherence, and strategies for stress management.

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14
Q

What factors can trigger seizures?

A

Sleep deprivation, stress, hormonal changes, certain foods, and noncompliance with medication.

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15
Q

What occurs during the Prodromal stage of a seizure?

A

Signs/symptoms that precede a seizure, such as mood changes, anxiety, or difficulty concentrating.

16
Q

What is an Aura in relation to seizures?

A

A warning sign just before a seizure, which can include sensations like déjà vu, visual disturbances, or unusual smells.

17
Q

What happens during the Ictus stage of a seizure?

A

The actual seizure activity, characterized by abnormal electrical discharges in the brain, leading to various symptoms depending on the seizure type.

18
Q

Describe the Postictal stage of a seizure.

A

The recovery phase after a seizure, where the patient may feel exhausted, confused, or experience muscle soreness.

19
Q

What are focal seizures?

A

Seizures that originate in one area of the brain and may affect awareness; they can involve motor or non-motor symptoms.

20
Q

What defines generalized seizures?

A

Seizures that involve both sides of the brain from the onset, often affecting consciousness; includes types like tonic-clonic and absence seizures.

21
Q

What are unknown onset seizures?

A

Seizures where the onset is unclear, and they may not fit into the categories of focal or generalized.

22
Q

Name three features of focal seizures.

A
  1. Can occur with or without awareness.
  2. May cause involuntary movements.
  3. Can have sensory or autonomic symptoms.
23
Q

Name three features of generalized seizures.

A
  1. Always involve loss of consciousness.
  2. Can cause muscle stiffening (tonic) and jerking (clonic).
  3. Typically last a few minutes.
24
Q

What is the significance of the Ictus stage in a seizure?

A

It is when the seizure is occurring, and understanding its manifestations is crucial for appropriate intervention.

25
Q

How can the Postictal state vary between individuals?

A

Recovery can include confusion, fatigue, headache, or complete disorientation, which can last minutes to hours.