Brain Injury Flashcards

1
Q

What two things do you want to avoid after a TBI?

A

Hypotension and hypoxia

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2
Q

What effect does CO2 have on blood vessels?

A

Dilation

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3
Q

When do you orally intubate a trauma pt?

A

Any concern for nasal fx

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4
Q

Why should you not hyperventilate a pt for first 24 hours after brain injury?

A

Causes cerebral ischemia

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5
Q

What kind of fluid should be avoided when resuscitating a brain injury pt?

A

Anything containing dextrose

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6
Q

Who needs a CTA?

A

Anyone w/concern for vascular injury or focal neuro deficits

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7
Q

HTN, bradycardia and respiratory irregularity is suggestive of what?

A

Cushing’s triad

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8
Q

Which pts should get hypertonic saline or mannitol?

A

Those with signs of herniation or neuro deterioration

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9
Q

Epidural bigger than what should be evacuated?

A

Greater than 30

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10
Q

What type of head bleed has a lucid interval?

A

Epidural hematoma

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11
Q

Which type of head bleed is common in older pts?

A

Subdural hematoma

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12
Q

For what type of head bleed is there no surgical intervention?

A

SAH

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13
Q

What is a complication of SAH?

A

Vasospasm

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14
Q

What type of brain injury may be missed on initial CT?

A

Cerebral contusions

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15
Q

What type of bleed is not a risk factor for seizure?

A

SAH

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16
Q

When do early post traumatic seizures occur?

A

Within 7 days

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17
Q

Should prophylaxis be given for late (past 7 days) seizure?

A

No

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18
Q

What is normally given for seizure prophylaxis?

A

Dilantin

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19
Q

What is a side effect of dilantin?

A

Bradycardia

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20
Q

What is the 2nd line tx for seizure prophylaxis?

A

Keppra

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21
Q

Can dilantin be given in liver failure?

A

No

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22
Q

GCS less than what should have intracranial monitoring?

A

Less than 8

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23
Q

What is the gold standard for ICP monitoring?

A

EVD

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24
Q

EVD places pt at risk for what?

A

Hemorrhage

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25
What is CPP goal if autoregulation is intact?
60-70
26
What is CPP goal if autoregulation is absent?
50-60
27
We should treat ICP above what?
22
28
What two meds can be given for hyperosmolar therapy?
Mannitol and HTS
29
Which hyperosmolar tx should not be given if pt hypotensive?
Mannitol
30
Which hyperosmolar tx should be given if pt has brain contusion?
HTS
31
What is the osmolality threshold for mannitol?
320
32
Cannot give HTS at a sodium level above what?
160mEq
33
Is craniectomy and early or late intervention for increased ICP?
Late
34
What does barbiturate or propofol coma do?
Decreases metabolic demand of the brain
35
What med is usually used for induced coma?
Pentobarbitol
36
What is the temp goal for brain injury pt?
37 (normothermia)
37
What is the gold standard for imaging the spine?
CT
38
How to treat an occipital condyle fx?
Cervical collar for 6-8 weeks
39
How to treat Jefferson fx?
Cervical collar for 6-8 weeks if stable; is unstable, surgical
40
Flexion extension films can r/o what?
Jefferson (C1) fx
41
What is atlanto occipital dislocation?
Internal decapitation
42
How is an axis fx tx?
C-collar x 6-8 weeks
43
What type of axis fx may need surgery?
Type 3
44
How is a hangman's fx tx?
Bracing x 6-8 weeks, sometimes surgical
45
Which type of teardrop fx is unstable?
Flexion
46
Which type of teardrop fx is stable?
Extension
47
Is anterior column fx stable?
Yes
48
Are middle column fx stable?
No
49
Are wedge or compression fx stable?
Yes, if loss of height is less than 50%
50
How is wedge or compression fx tx?
With bracing
51
Is burst fx stable or unstable?
Unstable
52
How long after injury does spinal shock occur?
About 4 hours after
53
Spinal or neurogenic shock involves the vasculate?
Neurogenic
54
Brady w/hypotension is suggestive of what?
Neurogenic shock
55
How is neurogenic shock tx?
Fluid resus and pressors
56
What is the typical mechanism in central cord syndrome?
Hyperextension
57
What type of spinal cord injury causes UE weakness >lower extremity?
Central cord syndrome
58
Does central cord syndrome cause bowel/bladder dysfunction?
Yes
59
Which spinal injury causes ipsilateral paralysis and contralateral sensory loss?
Brown-sequard
60
Which syndrome causes complete motor paralysis?
Anterior cord syndrome
61
Which cord syndrome has the worst prognosis?
Anterior cord syndrome
62
Are steroids recommended for spinal cord injuries?
No
63
MAP should be greater than what for 5-7 days after spinal injury?
85
64
Pts with spinal cord injury are at extremely high risk for what complication?
DVT
65
How often should spinal cord injury be cathed?
Q 4-6 hours
66
At what level of spinal injury will pt not have anal sphincter reflex?
Below L1
67
Autonomic dysreflexia occurs at injury at what and above?
T6 and above
68
What pressor do we use in neurogenic shock?
Norepi