Coma CC5 Flashcards

(37 cards)

1
Q

cheynne stokes respiratiorn means ___ isnt working

A

diencephalon

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2
Q

Pupillary Light Reaction

sympathetic probem.. eyes can’t

A

dilate

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3
Q

Pupillary light reflex

Parasympathetic problem then the eyes can’t

A

constrict

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4
Q

OculoVestibular reflexes: vestibular nucleus excitation causes excitations of contralateral

A

lateral rectus (via 6)

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5
Q

OculoVestibular reflexes: vestibular nucleus excitation causes excitations of ipsilateral

A

medial rectus via 3

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6
Q

Decorticate = lesion above the

A

red nucleus of the midbrain

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7
Q

Decorticate posture

what is flexed and adducted

A

arm, wrist, finger flexion, adduction of upper extremity

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8
Q

decorticate posture what is extended

A

leg extension, internal rotation, plantar flexion

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9
Q

Decerebrate = lesion below the red nucleus, release of __ output

A

vestibulospinal

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10
Q

with both decorticate and decerebrate you get

A

extension of legs and planatr flexion

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11
Q

sx of decerberate posturing

A
  • internal rotation of arms, clenching of jaws, stiff extension of limbs - extension of trunk and legs (opisthotonos), plantar flexion
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12
Q

Bilateral Diencephalic Stage (thalamus)

respiration pattern?

A

Cheyenes- Stokes

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13
Q

Bilateral Diencephalic Stage (thalamus)

pupillary size?

A

Small pupils with small range of constriction

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14
Q

Bilateral Diencephalic Stage (thalamus)

eye reflexes?

A

Eye reflexes normal (because brainstem is unaffected)

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15
Q

Bilateral Diencephalic Stage (thalamus)

Motor Responses at rest and to stimulation

A

Motionless, bilateral Decorticate posturing upon stimulation

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16
Q

if someone is in a coma it is the ___ or ____

A

reticular formation or bilateral cortex

17
Q

occulovestibular reflexes tests the inetrgrity of the

A

pons and portion of the midbrain

18
Q

___ consistes of opthotonos

19
Q

opsithotonos involves the

A

extension of the trunk and neck

20
Q

Bilateral Midbrain Stage (reticular activating system)

respiratory pattern

A

Central Neurogenic Hyperventilation, rarely cheynne stokes

21
Q

Bilateral Midbrain Stage (reticular activating system)

pupillary size and rxn?

A

Irregular, no pupillary constriction

22
Q

Bilateral Midbrain Stage (reticular activating system)

Oculocephalic and Oculovestibular Reflexes ??

A

Disconjugate eye reflexes - only CN6/ abduction present

23
Q

Bilateral Midbrain Stage (reticular activating system)

Motor Responses at rest and to stimulation

A

Motionless, bilateral Decerebrate posturing upon stimulation

24
Q

Central Neurogenic Hyperventilation suggests eihter (2)

A
  1. bilateral midbrain stage (reticular activating system)
  2. late 3rd nerve stage
25
Small pupils with small range of constriction suggests either
bilateral or uniulateral dienephalic stage
26
No vestbibularoculo reflexes suggests
bilateral pontine stage
27
if ipsilateral eye can't move medially that suggests
late 3rd nerve stage (midbrain)
28
Can cause either Decorticate or Decerebrate response
late 3rd nerve stage
29
\_\_\_ stage can cause Babinski’s sign on both sides
unilateral diencephalic
30
Bilateral Pontine Stage Motor Responses at rest and to stimulation
Motionless, Flaccid muscles
31
Motionless, bilateral **Decerebrate** posturing upon stimulation
Bilateral Midbrain Stage (reticular activating system)
32
Bilateral Midbrain Stage (reticular activating system) Motor Responses at rest and to stimulation
Motionless, bilateral Decerebrate posturing upon stimulation
33
no pupillary consitrction suggests
bilateral midbrain, bialteral pons, late 3rd nerve stage
34
Ipsilateral pupil widely dilated suggests
late 3rd nerve stage
35
ptosis suggests
Late 3rd Nerve Stage (midbrain)
36
RR deep and regular --\> central hyperventilation --\> ___ lesion
midbrain
37
uncal herination puts pressure on the
midbrain