Week 1 Flashcards

(71 cards)

1
Q

What structures make up the CNS?

A

Brain, spinal cord, cranial nerves I & II, and the retina.

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2
Q

How are the cerebral hemispheres connected?

A

By the corpus callosum.

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3
Q

What connects the brain to the head and facial structures?

A

Cranial nerves.

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4
Q

What does the ANS connect the CNS to?

A

Lungs, heart, stomach, intestines, bladder, and sex organs.

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5
Q

What are the functions of the Frontal Lobes?

A

Judgement/ problem solving, speech/ articulation (broca), voluntary movement, emotional state.

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6
Q

Main functions of the parietal lobe?

A

Spatial orientation, sensory integration and concept formation.

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7
Q

Main functions of the temporal lobe?

A

Auditory processing and formation of spoken memories.

Wernicke’s area - language area for comprehension.

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8
Q

Primary function of the occipital lobe?

A

Visual processing.

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9
Q

1 priority in any neuro assessment?

A

Changes in level of consciousness (LOC).

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10
Q

Correct order of LOC decline to monitor?

A

Conscious → confusion/agitation → lethargy → obtundation → stupor → deep coma.

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11
Q

Hallmarks of confusion.

A

Progressive disorientation, forgetfulness, difficulty following commands, restlessness/agitation.

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12
Q

Define lethargy.

A

A&Ox3 but very sluggish; sleeps often; awakens to voice or gentle touch.

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13
Q

Define obtundation.

A

Extremely drowsy, minimal responsiveness; requires vigorous stimulation; briefly arousable.

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14
Q

Define stupor.

A

Minimal movement; groans/moans; brief arousal only with repeated, forceful stimulation.

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15
Q

Define coma.

A

No response to verbal stimuli; does not speak; may show decorticate/decerebrate or no response to pain.

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16
Q

Three components of GCS.

A

Eye opening, best verbal response, best motor response.

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17
Q

GCS eye opening scores.

A

4 spontaneous, 3 to speech, 2 to pain, 1 none.

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18
Q

GCS verbal response scores.

A

5 oriented, 4 confused conversation, 3 inappropriate words, 2 incomprehensible sounds, 1 none.

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19
Q

GCS motor response scores.

A

6 obeys, 5 localizes pain, 4 withdraws, 3 abnormal flexion, 2 abnormal extension, 1 none.

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20
Q

Which cranial nerves are in the cerebrum?

A

CN I (olfactory) and CN II (optic).

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21
Q

Where are cranial nerves III–XII located?

A

Brainstem.

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22
Q

CN I and its bedside test.

A

Olfactory—smell identification.

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23
Q

CN II and its bedside test.

A

Optic—visual acuity/fields.

Example: “How many fingers?” “Read out loud this sentence on a piece of paper/package”

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24
Q

What are the primary roles of CN III?

A

Oculomotor—eyelid elevation and pupillary responses (accommodation, direct/consensual light).

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25
What does anisocoria mean?
Unequal pupils.
26
What is nystagmus?
Rhythmic eye oscillation.
27
What does hippus refer to?
Rapid pupillary constriction and dilation without stimuli
28
What is ptosis?
Drooping eyelid.
29
Which CNs are tested with the 6 cardinal fields of gaze?
CN III, IV (trochlear), VI (abducens).
30
What are the functions of CN V?
Trigeminal—facial sensation (sensory) and muscles of mastication (motor).
31
CN VIII bedside screen
Acoustic—whisper test; tuning fork (Rinne).
32
CN IX main sensory function
Glossopharyngeal—posterior tongue taste; gag/swallow.
33
CN X key bedside checks
Vagus—gag and cough reflex.
34
What is CN XI and how is it assessed?
Accessory (Spinal accessory) Shoulder shrug against resistance; turn head against resistance at mandible.
35
What is CN XII and how do we assess it?
Hypoglossal Ask pt to stick out tongue (midline?), move it side to side against resistance from tongue blade, checking for asymmetry, fasciculations,.
36
Classic balance test for the cerebellum.
Romberg test.
37
Rapid alternating movement testing evaluates what?
Cerebellar coordination (dysdiadochokinesia if impaired).
38
Finger-to-nose testing evaluates what?
Upper extremity coordination.
39
Hopping or heel-to-shin tests evaluate what?
Lower extremity coordination.
40
Superficial tactile testing checks what pathway?
Light touch sensation.
41
Position sense of a joint tests what?
Proprioception.
42
Vibration sense uses what tool?
Tuning fork on bony prominences.
43
Define stereognosis.
Identifying an object by touch alone.
44
Define graphesthesia.
Recognizing numbers/letters traced on the skin.
45
What are standard motor strength screens?
Bilateral 'push/pulls,' hand grasps, plantarflexion/dorsiflexion.
46
List five common DTRs.
Biceps, triceps, brachioradialis, patellar, Achilles.
47
What does a positive Babinski reflex suggest in adults?
It suggests CNS damage. ## Footnote Babinski response considered pathologic in adults.
48
Define Cheyne-Stokes breathing.
Cycles of hyperventilation alternating with apnea.
49
Conditions associated with Cheyne-Stokes.
Stroke, hyponatremia, TBI, brain tumors, heart failure, toxins/overdose, near death.
50
Normal aging effects on sleep and reaction time.
Fragmented sleep; slowed reaction time.
51
Normal aging effects on balance and movement.
Reduced balance and slower movements.
52
Normal aging effects on memory and learning.
Mild memory loss and slower learning.
53
Aging effect on temperature regulation and pain perception.
Impaired thermoregulation; altered pain sensation.
54
What are the elements of a quick neuro check in hospitalized patients?
Vitals, LOC, GCS, key CNs (III, IV, VI, IX, X; VII for symmetry), bilateral strength, and light touch sensation.
55
CT nursing considerations
Noninvasive; keep patient immobile; assess for claustrophobia/anxiety.
56
MRI/MRA core advantage
Superior anatomic detail of soft tissues, bone, and vasculature.
57
MRI safety priorities
Metal screening (patient/staff), pacemaker checks, tattoos with metallic ink, loud noise (ear protection), possible sedation for claustrophobia.
58
What are the primary indications for EEG?
Detect seizure/electrical activity and evaluate brain death.
59
What are the pre-test medication cautions for EEG?
Avoid stimulants, opioids, and sedatives; keep patient calm.
60
Transcranial Doppler (TCD) measures what?
Cerebral blood flow velocity to identify vasospasm.
61
TCD logistics.
Noninvasive ultrasound done by a tech; ~30–60 minutes.
62
What does a PET scan show in neuro?
Metabolic function and changes in brain activity.
63
What are the nursing considerations for a PET scan?
Consent, immobility, relaxation techniques; possible transient sensations (dizzy, HA, light-headed).
64
What imaging test visualizes cerebral vessels using contrast and threading the cath up the femoral artery?
Cerebral angiogram
65
What can a cerebral angiogram assess/detect?
Patency of cerebral blood vessels Narrowing or stenosis of cerebral blood vessels Occlusions Aneurysms Tumors Alterations in blood flow
66
What are the pre-procedure nursing implications for cerebral angiograms?
Obtain consent/ allergies Check orders for NPO IV for hydration
67
What are the post-procedure nursing implications for cerebral angiograms?
Assess puncture site for hematoma/ bleeding VS Distal pulses Neuro deficits
68
Why are Lumbar punctures done?
To obtain CSF for culture Measure ICP Diagnostic for subarachnoid hemorrhage or epidural bleed (contraindicated if bleed already suspected - but if blood seen during another procedure it is used to diagnose)
69
Nursing implications for Lumbar Puncture
Consent Bladder emptied Positioning (curled up on side) Specimens to the lab Check injection site
70
What is a common side effect of a lumbar puncture?
"Spinal HA"
71
Nursing implications for a Spinal HA?
Lie flat for 3-6 hours Hydration reassurance, quiet environment Analgesia