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Chapter 19
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Seizure Sudden onset of random, continuing discharges of electrical activity in the brain Can be gross muscle contraction to just staring spells Usually accompanied by altered mental status Only last 2-3 minutes
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Not a disease, but caused by underlying defect, injury, or disease Epilepsy-chronic brain disorder 125,000 cases each year
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Figure 19-1a A generalized tonic-clonic, or grand mal, seizure is a sign of abnormal release of electrical impulses in the brain: (a) aura.
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Figure 19-1b A generalized tonic-clonic, or grand mal, seizure is a sign of abnormal release of electrical impulses in the brain: (b) loss of consciousness followed by tonic phase.
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Figure 19-1c A generalized tonic-clonic, or grand mal, seizure is a sign of abnormal release of electrical impulses in the brain: (c) clonic phase.
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Figure 19-1d A generalized tonic-clonic, or grand mal, seizure is a sign of abnormal release of electrical impulses in the brain: (d) postictal phase.
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Status Epilepticus Generalized seizure lasting more than 5 minutes Direct medical emergency Aggressive airway management Can cause permanent brain damage
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Signs & Symptoms Aura Loss of consciousness Tonic phase-muscle rigidity Hypertonic phase-extreme muscle rigidity Clonic phase-convulsion Postictal state
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Simple Partial Seizure AKA focal motor seizure or Jacksonian motor seizure Involves one cerebral hemisphere Jerky movement generally one area
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Complex Partial Seizure Psychomotor or temporal lobe seizure Involves one hemisphere Starts with blank stare Will be awake but unaware of surroundings Clumsy & lack of direction Mumbles or repeats words
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Absence (Petit Mal) Seizure Most common in children Characterized by blank stare Lasts only a few seconds Rapid eye blinking Chewing Lack of attention
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Febrile Seizure High fever Most common 6 months to 6 years
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Assessment Scene size up Primary Secondary Convulsions Rigid muscular contraction Bitten tongue Excessive saliva Urinary or bowel incontinence Chewing movement, smacking lips, wringing hands, or some other repetitive movement Localized twitching of muscles Visual hallucination Olfactory hallucination
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Emergency Medical Care Position patient Maintain airway Suction Assist ventilations Prevent injury Maintain O 2 therapy Transport Reassess
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Treatment Figure 19-2 Protect the seizing patient from injury by moving furniture and objects away.
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Syncope Fainting Temporary lack of blood flow to brain Often confused as a seizure Vasodilation throughout body Vasovagel faint
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