Week 9 Neurocognition I Flashcards

1
Q

Somatic Nervous System SNS

A

Controls skeletal muscle contraction

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2
Q

Autonomic Nervous System ANS

A
  • Provides automatic regulation
  • Smooth & cardiac muscles
  • Glands
  • Adipose tissue
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3
Q

Intracranial Pressure ICP

A
  • Pressure within the cranial cavity
  • Measured in mmHg
  • Impacted by volume
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4
Q

Cerebral Perfusion Pressure CPP

A

Pressure gradient drives oxygen to cerebral tissue

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5
Q

Increased ICP

A
  • Decrease in CPP
  • Brain ischemia
  • Drain damage
  • Death
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6
Q

Causes of Increased ICP

A
  • Stroke
  • Infection
  • Trauma/aneurysms
  • Hypertension
  • Hypoxemia
  • Tumours
  • Hydrocephalus
  • Seizures/epilepsy
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7
Q

Increased ICP S/S

A
  • Mental status changes
  • Irregular breathing
  • Nerve changes
  • Posturing
  • Weakness/decline in motor function
  • Vomiting
  • Headache
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8
Q

Cushing’s Triad

A
  • Late stage increased ICP
  • Heart, lungs , BP
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9
Q

Oculocephalic Reflex

A

Head rotates right, eyes move to left

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10
Q

Babinski’s Reflex

A

Fanning of toes

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11
Q

Decerebrate Posturing

A
  • Elbow extension
  • Forearm pronation
  • Hand flexion
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12
Q

Decorticate Posturing

A

Elbow & hand flexion

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13
Q

Increased ICP Medical Interventions

A
  • VP or LP shunts
  • Change vent settings
  • Craniectomy surgery
  • Acetazolamide med
  • Lumbar puncture no longer common
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14
Q

Spinal Cord Injury

A
  • Damage to spinal cord
  • Impacts on strength, motor function, bowel/bladder, sensation, reflexes
  • Temp or perm
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15
Q

Spinal Cord Injury Progression

A
  • Primary - initial traumatic event or insult
  • Secondary - edema & hemorrhage that follow injury
  • Prognosis most accurately assess 72+h post-trauma
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16
Q

Complete Transection

A

Complete loss of mobility, sensation, reflexes below injury

17
Q

Incomplete/Partial Transection

A
  • Some signals
  • Some movement/sensation retained
18
Q

Paraplegia

A

Lower extremity

19
Q

Tetraplegia

A

All extremities

20
Q

Cervical C1-C8

A
  • Tetraplegia
  • C4 & above loss of diaphragm
  • Bowel/bladder support
21
Q

Thoracic T1-T12

A
  • Paraplegia
  • Control of upper extremities & trunk
22
Q

Lumbar L1-L5

A
  • Ambulation with assistance
  • Hips & legs impacted
23
Q

Respiratory Impact - Spinal Cord Injruy

A
  • Impaired function of accessory muscles
  • Hypoventilation
  • Atelectasis
  • Pneumonia
24
Q

Cardiovascular Impact - Spinal Cord Injury

A
  • SNS activation can be compromised
  • Bradycardia
  • Vasodilation
  • Hypotension
  • Decrease CO
  • DTV
25
Q

Autonomic Dysreflexia

A
  • Stimulation of sensory receptors below injury
  • Causes vasoconstriction & hypertension
  • Nerves can’t respond to stimulus
26
Q

Autonomic Dysreflexia S&S

A
  • Sudden BP increase
  • Headache
  • Hypertension
  • Bradycardia
  • Sweating & flushing above injury site
  • Piloerection
  • Nasal congestion
27
Q

Autonomic Dysreflexia Nurse Management

A
  • 45 degrees
  • Administer antihypertensives (IV)
  • Remove stimuli
28
Q

Spinal Shock

A
  • Post spinal cord injury
  • Areflexia motor, bowel, bladder
  • Loss of sensation
  • Paralysis
  • Flaccidity
  • Bradycardia & hypotension
29
Q

Neurogenic Shock

A

Injuries above T6

30
Q

Neurogenic Shock Causes

A
  • Autonomic dysfunction
  • Decreased systemic vascular resistance & bradycardia
  • Vasodilation & venous pooling
31
Q

Neurogenic Shock S/S

A
  • Fever
  • Perspiration above injury
  • Warm dry skin below injury
  • Hypotension
  • Decreased HR
32
Q

Neurogenic Shock Nursing Management

A
  • Code blue
  • ABCs
  • Administer oxygen
  • IV access
  • Vasopressors
  • Atropine