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Exam Two Tidbits
Must pass Neuro!!!!!!!
51
Nursing
Undergraduate 4
10/15/2012

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Term
Glioma
Definition
most common, most aggressive primary tumor; originates in brain tx
Term
Meningioma
Definition
arise from coverings of brain (meninges)
Term
Neuromas
Definition
developing in or on the cranial nerves
Term
Brain tumor clinical presentation
Definition
HA: worse at night/early morning, worse with straining, lifting, coughing
N/V: from increased ICP; assess
Seizures
Cognitive impairment: short term memory, word finding, confusion, personality/mood issues
• Visual disturbances: decreased acuity, diplopia, field defecits…
Weakness: varies
Aphasia (speech)
Term
Priority nursing care after craniotomy
Definition
1. neuro checks
2. pain
3. nausea
4. I& O
Term
Linear fx
Definition
crack, no misalignment, Low-velocity injuries, usually no loss of consciousness or s/s
Term
Depressed fx
Definition
pressing down, Inc. ICP, injury to brain tx, usually lose consciousness and need surgery
Term
Simple fx
Definition
can be linear or depressed, not fragmented or communication lacerations, low to mod impact
Term
Comminuted fx
Definition
shattered glass (many linear fx's,) fragments can lacerate brain, Direct, high-momentum impact; need surgery
Term
Compound fx
Definition
depressed skull fx and scalp laceration with communication pathway of intracranial activity (brain tx not pierced,) bone not totally aligned, severe head injury
Term
Frontal fx
Definition
Exposure of brain to contaminants thru frontal air sinus (may feel air in forehead tx)
CSF rhinnorhea (signifies dural tear,) pneumocranium
Term
Orbital fx
Definition
periorbital ecchymosis, raccoon’s eyes 2-3 days after injury (may be only s/s)
Term
Temporal fx
Definition
Boggy temporal muscle (extravasion of blood,) Battle’s sign, CSF otorrhea
Term
Parietal fx
Definition
Deafness, CSF or brain otorrhea. Bulging of tympanic membrane (brain or CSF,) facial paralysis, loss of taste, Battle’s sign
Term
Posterior fossa fx
Definition
Occipital bruising, visual field deficits (healthy eye but partial loss of vision, retain reflexes,) possible ataxia or cerebellar signs
Term
Basilar (base of skull)
Definition
CSF or brain otorrhea, bulging of tympanic membrane (blood or CSF,) Battle’s sign, tinnitus or hearing difficulty, facial paralysis, conjugate deviation of gaze (difficulty moving eyes together to focus,) vertigo, raccoon’s eyes
Term
Epidural hematoma
Definition
neuro emergency, hemorrhage in epidural space between dura and skill
Assoc. w/ linear fx crossing major artery in dura, causing tear
Venous – slower bleed, arterial – quick
S/S: unconscious, brief lucid period, decreased LOC, HA, n/v, focal deficits
Term
Subdural hematoma
Definition
between dura mater and arachnoid layer; outcome depends on size/location
Results from injury to brain tx and blood vessels
o Usually venous (develops slowly)
May need surgery
Term
acute subdural hematoma
Definition
W/in 48 hours of severe trauma; immediate deterioration!
S/S: inc. ICP (fixed pupils,) decreased LOC, HA, dilated ipsilateral pupil
Tx: craniotomy, evacuation and decompression
Term
subacute subdural hematoma
Definition
W/in 48 hours – 2 weeks after injury
S/S: mental status changes
Tx: evacuation and decompression, need surgery
Term
chronic subdural hematoma
Definition
Weeks – months after injury, usually >20 days; injury may have seemed trivial
S/S: nonspecific, nonlocalizing (ie- blurred vision,) progressive alteration in LOC
Tx: evacuation and decompression, membranectomy
Term
Intracerebral hematoma
Definition
bleeding w/in brain tx, usually w/in frontal and temporal lobes, may result from rupture of intracerebral vessels at time of injury
Term
C1
Definition
No sensation, no control of neck, require vent, totally dependent
sip/puff EWC, voice
Term
C2-3
Definition
head/neck sensation, some neck control, independent of vent for short periods, dependent, sip/puff ewc
Term
C4
Definition
good sensory/motor head and neck, some shoulder elevation, diaphragm movement, may eat w/ adaptive sling (otherwise dependent,) mouth, chin, should control EWC
Term
C5
Definition
full head/neck control, shoulder strength, elbow flexion, get dress w assistance, max assist w/ elimination, electric or modified manual WC, transfer assist
Term
C6
Definition
fully innervated shoulder, independent or min assist, I in transfers and WC
Term
C7-8
Definition
full elbow extension, wrist plantar flexion, some finger control, independent, manual WC
Term
T1-5
Definition
full hand and finger control, use of intercostal and thoracic muscles, independent, manual WC
Term
T6-10
Definition
abd muscle control, partial to good balance with trunk muscles, independent, manual WC
Term
T11-L5
Definition
hip flexors, hip abductors (L1-3,) knee extension (L2-4,) knee flexion/ankle dorsiflexion(L4-5,) independent, short distance to full ambulation with assistance
Term
S1-S5
Definition
full leg, foot, ankle control, innervation of perineal muscles for B, B, and sexual fx (S2-4,) independent, normal to impaired B&B fx, ambulate independently with or w/o assistance
Term
Ischemic cascade
Definition
Not enough ATP production
Loss of ion homeostasis
Release of excitatory amino acids
Free radical formation
Cell death
Term
when cbf is interrupted
Definition
30 sec: neuro metab. Altered
2 min: metabolism stops
5 min: cellular death
Term
s/s carotid TIA
Definition
Amaurosis fugax: temp. loss of vision in one eye
Transient hemiparesis: temp. loss of motor fx on one side
Sudden inability to speak
Term
s/s vertebrobasilar TIA
Definition
o Tinnitus
o Vertigo
o Darkened or blurred vision, or complete (temp.) vision loss
o Diplopia
o Ptosis
o Dysarthria
o Dysphagia
o Ataxia
o Unilateral or bilateral numbness or weakness
Term
motor s/s general stroke
Definition
o Mobility, resp. fx, swallowing and speech, gag, self-care, akinesia, flaccidity, spasticity, loss of skilled voluntary movement, dec. integration of movement, alterations in muscle tone and reflexes
Term
Broca's aphasia
Definition
frontal lobe, short phrases, great effort, awareness, frustration
Term
Wernicke's aphasia
Definition
temporal lobe, long sentences w/o meaning, make up words, don’t realize people don’t understand
Term
Left brain intellect issues
Definition
memory issues, cautious
Term
Right brain intellect issues
Definition
impulsive, safety risk
Term
spatial-perceptual alterations
Definition
o Incorrect perceptions, ie deny illness (parietal lobe)
o Erroneous perception of self in space (neglect affected side)
o Inability to recognize object by sight, touch, or hearing (agnosia) (right side)
o Inability to carry out learned sequential movements on command (apraxia)
Term
initial stroke assessment
Definition
Dec. LOC, Motor, Speech/visual issues, Severe HA, Tachycardia/bradycardia (cbf), Resp. distress, Unequal pupils, HTN (trying to perfuse brain)
• Facial droop
• Dysphagia
• Seizures
• IncN/V
• Vertigo
Term
ischemic strokes
Definition
thrombotic
embolitic
lacunar
Term
thrombotic stroke
Definition
o Most do not have decreased LOC in first 24 hours
o May progress in first 72 hours
o Usually during or after sleep (BP low)
o Serial CT scans
Term
embolitic stroke
Definition
blood clot, fat emboli, air emboli
o Sudden onset; may or may not be r/t activity
o Pt. usually conscious, may have HA
o Recurrence is common
Term
lacunar stroke
Definition
small blood clots, smaller branch of smaller artery
Term
hemorrhagic strokes
Definition
intracerebral and subarachnoid
Term
intracerebral stroke
Definition
o Bleeding w/in brain caused by rupture of vessel
o HTN common cause
o Onset during periods of activity (BP higher)
o Sudden onset
o Coma = fatality
o S/S: neuro deficits, HA, n/v, dec. LOC, HTN, slurred speech
o Bad signs: seizures, fixed pupils, abnormal postures, pons damage
Term
subarachnoid stroke
Definition
(between arachnoid and pia mater)
o Usually caused by ruptured cerebral aneurysm (saccular or berry aneurysm, varies)
o ICU 2 weeks, vasospasms 6-10 days after bleed
o Most are in circle of Willis
o May or may not lose consciousness
o “Worst HA of life”
Term
subarachnoid stroke tx
Definition
o Treatment
 Clipping (no future MRIs)
 Coiling
 Surgical resection of arteriovenous malformation
 Phenylephrine or dopamine, hypervolemic
 Nimodipine (Nimotop) before surgery (Ca channel blocker)
• Decreases vasospasm
• Min. cerebral damage
• Hold if pulse less than 60 or SBP under 90, call MD
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