Neuro Conditions Flashcards

(53 cards)

1
Q

inflammatory conditions of the brain

A

brain abscesses, meningitis, encephalitis

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2
Q

bacterial meningitis

A

acute inflammation of meningeal tissue surrounding brain and spinal cord

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3
Q

when does bacterial meningitis occur

A

fall, winter, or early spring

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4
Q

what is bacterial meningitis typically r/t

A

a viral respiratory disease

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5
Q

what are the leading causes of bacterial meningitis

A

streptococcus pneumonial, neisseria, meningitis

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6
Q

pathophysiology of bacterial meningitis

A

organisms enter CNS through upper respiratory tract/bloodstream; may enter through skull wounds/fractures

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7
Q

inflammatory response of bacterial meningitis

A

increased cerebrospinal fluid production; purulent secretions spread to other areas of brain through CSF; cerebral edema and increased ICP becomes problematic (if extends to parenchyma)

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8
Q

key signs of bacterial meningitis

A

fever, severe headache, nausea, vomiting, nuchal rigidity

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9
Q

2 ways to check for bacterial meningitis

A

tuck chin in, light sensitivity, and fever

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10
Q

when would a coma be associated with a poor prognosis

A

photophobia; decreased level of consciousness

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11
Q

signs of increased intracranial pressure

A

seizure occurs in 1/3 cases; headache worsens; vomiting and irritability

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12
Q

complications of bacterial meningitis

A

increased ICP; residual neurologic function; optic nerve (CN II) compressed by increased ICP; ocular movements affected with irritation to CN III, IV, VI; CN V irritation; inflammation of CN VII; irritation of CN VIII; hemiparesis, dysphagia, hemianopsia; cerebral abscess, subdural empyema, subdural effusion, or persistent meningitis occurs if everything doesn’t happen

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13
Q

increased ICP s/s

A

major cause in change in mental status

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14
Q

residual neurologic function s/s

A

cranial nerves II, III, IV,V, VI, VII, VIII can become dysfunctional

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15
Q

optic nerve (CN II) compressed by increased ICP s/s

A

papilledema with possible blindness

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16
Q

ocular movements affected with irritation to CN III, IV, and VI s/s

A

ptosis, unequal pupils, diplopia

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17
Q

CN V irritation s/s

A

sensory loss and loss of corneal reflex

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18
Q

inflammation of CN VII s/s

A

facial paresis

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19
Q

irritation of CN VIII s/s

A

tinnitus, vertigo, deafness; hearing loss may be permanent

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20
Q

what might acute cerebral edema cause

A

seizures, CN II palsy, bradycardia, hypertensive coma, death

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21
Q

diagnostic studies for neuro condition

A

blood culture; CT scan; neutrophils are predominant WBC in CSF; x-rays of the skull; MRI

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22
Q

how can the diagnosis of bacterial meningitis be verified

A

lumbar puncture; analysis of CSF; specimen of secretions are cultured to identify causative; gram-stain to detect bacteria

23
Q

interprofessional care for bacterial meningitis

A

rapid diagnosis is crucial; this is a medical emergency

24
Q

what is started before diagnosis is confirmed for bacterial meningitis

A

broad spectrum antibiotics

25
what should the initial assessment should include for bacterial meningitis
vital signs; neurological assessment; I&Os; evaluation of lungs and skin
26
nursing diagnoses of bacterial meningitis
decreased intracranial adaptive capacity; ineffective tissue perfusion; hyperthermia; acute pain
27
overall nursing goals for bacterial meningitis
return to maximum neurological functioning; resolve the infection; control pain and discomfort
28
health promotion (implementation) for meningitis
vaccinations for pneumonia and influenza; meningococcal vaccines; early, vigorous treatment of respiratory infections; prophylactic antibiotics for anyone exposed to bacterial meningitis
29
acute care (implementation) bacterial meningitis
close observation and assessment; provide relief for head and neck pain; position for comfort; darkened room and cool cloth over eyes for photophobia; minimize environmental stimulus (delirium and hallucinations may occur); provide safety
30
observe and record seizures (implementation) bacterial meningitis
prevent injury; give anti-seizure drugs as ordered
31
vigorously mange fever (implementation) bacterial meningitis
fever increases cerebral edema and risk of seizures; neurologic damage may result from high, prolonged fever
32
ambulatory care (implementation) bacterial meningitis
provide for several weeks of recovery; increased activity as tolerated (stress adequate nutrition and encourage adequate rest/sleep); progressive ROM exercises and warm baths for muscle rigidity; ongoing assessment for recovery of vision, hearing, cognitive skills, motor, and sensory abilities; be aware of anxiety and stress felt by family and caregivers
33
other nursing implementations for bacterial meningitis
assess for dehydration; follow designed antibiotic schedule to maintain therapeutic blood levels; respiratory isolation until cultures are negative
34
nursing evaluations for bacterial meningitis
patient will: have appropriate cognitive function; AAOx3; maintain body temp within normal range; report satisfaction with pain control
35
viral meningitis
treat with antibiotics after obtaining diagnostic sample but while awaiting test results
36
what are the most common causes for viral meningitis
enterovirus, arbovirus, HIV, and HSV
37
how is viral meningitis spread
direct contact with respiratory secretions
38
how does viral meningitis present
headache, fever, photophobia, and stiff neck
39
transient ischemic attack
a transient episode of neurologic dysfunction caused by focal brain, spinal cord, or retinal ischemia, but without acute infraction of brain
40
brain tumor
occur in any part of brain, benign and malignant, primary vs. secondary
41
what does the brain tumor do
apply pressure to surrounding brain tissue causing decreased overflow of CSF resulting in increased ICP, cerebral edema, neurodeficits
42
clinical manifestations of a brain tumor
dysarthria, dysphagia, positive romberg and babinski sign, vertigo, hemiparesis, loss of gag reflex
43
manifestations of supratentorial tumors
severe headache, visual changes, seizures, loss of movement, cognitive function, paralysis
44
manifestations of infratentorial tumors
hearing loss, facial drooping, dysphagia, hemiparesis, and ataxia
45
diagnostics for brain tumors
CBC, x-ray, LP, cerebral biopsy, CT, MRI, renal, endocrine, lab work, and electrolyte status
46
nursing management for brain tumors
maintain airway, safety and seizure precautions; administer O2; monitor lung sounds, neurological status
47
medications for brain tumors
analgesics, steriods, anticonvulsants, antiemetic, H2 antagonists
48
other treatment options for brain tumors
chemo, radiation, craniotomy
49
complications
SIADH
50
SIADH
fluid retained due to overproduction of vasopressin or antidiuretic hormone; hypothalamus is damaged
51
s/s of complications
disorientation, headache, vomiting, muscle weakness, decreased LOC, irritability, weight fain, seizures, coma
52
treatment for complication
fluid restriction; treat hypnotremia
53
CSW
complication of CNS disease; causes hypnotremia and hypovolemia; monitor electrolytes, I&O, weight, fluid balance, hydration