Complex Exam 3 - acute intracranial disorders Flashcards

(83 cards)

1
Q

Does loss of consciousness occur with a concussion?

A

briefly

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2
Q

What are s/sx of a concussion?

A
  • retrograde amnesia
  • confusion
  • memory loss
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3
Q

What is a contusion?

A

bruising of the brain

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4
Q

Does loss of consciousness occur with a contusion?

A

YES

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5
Q

What posturing can occur from a contusion?

A

decorticate and decerebrate

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6
Q

What can a diffuse axonal injury lead to?

A

coma

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7
Q

What does intracerebral hemorrhage lead to?

A

hemorrhagic stroke

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8
Q

What are s/sx of intracranial hemorrhages?

A
  • decreased LOC
  • ipsilateral pupillary dilation (on the side of injury)
  • weakness
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9
Q

What type of intracranial hemorrhage causes ICP to decrease fast?

A

epidural

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10
Q

When should you monitor for a CSF leak from the nose or ears? What does it indicate?

A
  • skull fractures
  • basilar skull fracture
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11
Q

What is the “halo sign”?

A

a yellow stain surrounded by blood that will test positive for glucose

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12
Q

Battle’s sign can happen with skull fractures. What is this?

A

bruising over the mastoid process

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13
Q

What is it called when a patient with a skull fracture has periorbital edema and ecchymoses?

A

raccoon eyes

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14
Q

When should a lumbar puncture be avoided?

A

with increased ICP

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15
Q

How can increased ICP be ruled out?

A

CT

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16
Q

What is the patient at risk for after a craniotomy?

A
  • permanent neuro deficits
  • seizure disorder
  • infection
  • death
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17
Q

How should the patient be positioned if their head injury was infratentorial?

A

flat on either side

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18
Q

How should the patient be positioned if their head injury was supratentorial?

A

head midline with HOB @ 30 degrees

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19
Q

What SCI results in quadriplegia?

A

injury to the cervical region

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20
Q

What SCI results in paraplegia?

A

injuries below T1

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21
Q

What SCI causes the inability to protect the airway?

A

C4 and above

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22
Q

What is the function of the phrenic nerve?

A

stimulates spontaneous breathing

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23
Q

What happens to the bladder of a patient with a SCI?

A

spastic and flaccid neurogenic bladder

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24
Q

What SCI causes hypertonia?

A

above L1/L2

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25
What SCI causes hypotonia?
below L1/L2
26
What happens to BP and RR with a SCI?
hypotension and shallow respirations
27
If a patient with a SCI experiences loss of thermoregulation what is it a sign of?
neurogenic shock
28
Should the HOB be raised with a SCI?
NO
29
What is important to monitor with a SCI?
- neuro status - muscle strength - mobility - sensation - skin breakdown
30
How should a patient with a SCI be moved?
logroll
31
What type of SCI causes autonomic dysreflexia?
injury around T6 and above
32
What are the s/sx of autonomic dysreflexia?
- extreme HTN - severe headache - diaphoresis - increased temp - anxiety/restlessness - goosebumps
33
What does autonomic dysreflexia increase the risk of?
stroke, seizure, death
34
What are the 3 B's that cause autonomic dysreflexia?
- bladder: distended - bowel: fecal impaction - breakdown of skin: tight clothing
35
What is important to teach with autonomic dysreflexia?
bladder/bowel training
36
When does neurogenic shock usually occur?
within 24 hours of a spinal cord injury
37
What happens to BP and HR with neurogenic shock?
hypotension and bradycardia
38
How can postural hypotension occur with neurogenic shock?
keeping the pt in an upright position
39
How can postural HTN be avoided with neurogenic shock?
transfer the patient in stages by first raining the HOB and then transferring the patient into a reclining wheelchair
40
If a patient experiences dizziness with neurogenic shock what should be done?
- lower HOB - lock and lean wheelchair to fully reclining position
41
What medication should be given for bradycardia with neurogenic shock?
atropine
42
What are vasopressors used for with neurogenic shock?
to treat hypotension
43
How many people should be used to transfer a patient in neurogenic shock?
3
44
Is viral meningitis contagious?
not very
45
Is bacterial meningitis contagious?
very
46
What type of meningitis has a vaccine?
bacterial
47
Meningitis causes a positive kernig's sign. What does this mean?
there is pain and resistance when attempting to straighten the knee, the head flexes up
48
Meningitis causes a positive brudzinski's sign. What does this mean?
the knees and hips flex when the patient's neck is flexed
49
What happens to DTR's with a SCI?
they are absent
50
What happens to DTR's with meningitis?
they are hyperactive
51
What happens to the neck of a patient with meningitis?
stiff, rigid
52
Can meningitis cause seizures?
YES
53
What will the CSF of a patient with bacterial meningitis look like?
- cloudy - decreased glucose - positive gram stain - increased WBC's and protein
54
What will CSF of a patient with viral meningitis look like?
- clear - negative gram stain - increased WBC's and protein
55
What isolation precautions should be used for meningitis?
droplet
56
How long does a patient with bacterial meningitis have to be isolated?
at least 24 hours
57
Is meningitis a reportable disease?
yes
58
What type of meningitis needs antibiotics?
bacterial
59
What vaccines should be given for meningitis?
- Hib - pneumonia (PPSV 13 or 23) - meningococcal (MCV 4)
60
Which side of the brain causes aphasia, agnosia, alexia, agraphia, apraxia, dysarthria, and dysphagia?
left
61
Which side of the body is weak/paralyzed after a left-sided stroke?
right
62
Which side of the brain causes unilateral neglect?
right
63
Which side of the brain causes depression, anger/frustration?
left
64
Which side of the brain causes overestimation of abilities, loss of depth perception, and poor impulse control/judgment?
right
65
Which side of the body is weak/paralyzed after a right-sided stroke?
left
66
What are important to know about a patient with hemorrhagic stroke?
- a-fib - blood thinner use - time the s/sx started
67
How should you communicate with someone after a stroke?
- short phrases - gestures/pointing - no distraction - patience - repetition - one question at a time - communication board
68
What diet should someone be on after a stroke until their speech path is clear?
NPO
69
What infant reflex returns if there is a brain tumor?
babinski
70
What is papilledema and when does it happen?
optic nerve swelling that occurs with brain tumors
71
Brain tumors can cause the inability to discriminate sounds, loss of gag reflex, and loss of blink response. What are these examples of?
cranial nerve dysfunction
72
What are s/sx of brain tumors?
- HA - dysarthria - dysphagia - vertigo - hemiparesis - papilledema
73
What should be stopped before surgery for brain tumors?
- 72 hours before: aspirin - 5 days before: alcohol, tobacco, anticoagulants, NSAIDS
74
What does a CT tell you about a brain tumor?
- size - location - extent
75
What labs should be monitored with brain tumors?
- electrolytes - renal function - endocrine function
76
What causes SIADH?
overproduction of ADH due to damaged hypothalamus
77
What does the overproduction of ADH cause?
fluid retention
78
What medication can be given for SIADH?
conivaptan (vasopressin antagonist)
79
What happens of SIADH goes untreated?
seizures, coma
80
What can cause diabetes insipidus?
- supratentorial surgery, craniotomy - ADH deficiency
81
What does ADH deficiency cause?
increased urine excretion
82
How is diabetes insipidus treated?
- fluid replacement - electrolyte replacement
83
What intracranial disorder can have photophobia?
meningitis