TBI #2 Flashcards

1
Q

Normal ICP

A

5-10 mmHg

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2
Q

Abnormal ICP

A

greater than 20 mmHg

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3
Q

What activities can increase ICP?

A

Cervical flexion, percussion & vibration, coughing

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4
Q

Signs and symptoms of ICP:

A

Decreased responsiveness, impaired consciousness, severe HA, vomiting, irritability, papilledema, ↑d BP & ↓d HR

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5
Q

How much oxygen does the brain demand?

A

20% of body’s oxygen

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6
Q

Areas vulnerable to lack of oxygen

A

Hippocampus (Memory storage area)
Cerebellum
Basal Ganglia

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7
Q

Seizure:

A

discrete clinical event reflecting temporary, physiologic brain dysfunction, characterized by excessive hypersynchronous cortical neuron discharge

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8
Q

Events that trigger seizures:

A

Stress, poor nutrition, electrolyte imbalances, missed mediations or drug use, flickering lights, infection, fever, worry, and fear

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9
Q

GCS mild:

A

13-15

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10
Q

GCS moderate:

A

9-12

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11
Q

GCS severe:

A

less than 8

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12
Q

Stage 1 of Recovery Stages from Diffuse Axonal Injury

A

coma

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13
Q

Stage 2 Recovery Stages from Diffuse Axonal Injury

A

Unresponsive Vigilance/vegetative state

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14
Q

Stage 3 Recovery Stages from Diffuse Axonal Injury

A

Mute responsiveness/minimally responsive (pt. is not vegetative and DOES show signs, even if intermittent, of fluctuating awareness

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15
Q

Stage 4 Recovery Stages from Diffuse Axonal Injury

A

Confusional State (disturbance of attention mechanisms; all cognitive operations are affected, patient is unable to perform new memories. Can have hyper/hypo arousal)

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16
Q

Stage 5 Recovery Stages from Diffuse Axonal Injury

A

Emerging Independence (confusion is clearing and some memory possible, significant cognitive problems and limited insight, socially uninhibited)

17
Q

Stage 6 Recovery Stages from Diffuse Axonal Injury

A

Intellectual/Social Competence (increasing independence, although cognitive difficulties (problem solving, reasoning) persist along with behavioral and social problems)

18
Q

Stage 7 Recovery Stages from Diffuse Axonal Injury

A

Patient can plateau at any stage or regress under conditions of stress or repetitive brain injury

19
Q

What does Glascow Coma Scale measure?

A

Pupillary response
Motor activity
Ability to verbalize

20
Q

Arousal

A

Primitive state of being awake or alert

Reticular activating system is responsible for level of arousal

21
Q

Awareness

A

Conscious of internal & external environmental stimuli

22
Q

Consciousness

A

State of being aware

23
Q

Coma

A

State of decreased level of awareness; Usually not > 3 weeks
State of unconsciousness in which the patient is neither aroused nor responsive to the internal or external environments (Rappaport et al., 1992)
Eyes are closed
Unable to initiate voluntary activity
Sleep & wake cycles cannot be distinguished on EEG

24
Q

Vegetative State

A

Return of brainstem reflexes, sleep-wake cycles but remains unconscious
May experience periods of arousal & spontaneous eye opening without tracking

25
Q

Persistent Vegetative State

A

A vegetative state for a year or longer

26
Q

Stupor

A

Condition of general unresponsiveness

27
Q

Obtundity

A

Occurs in individuals who sleep a great deal of time

28
Q

Delrium

A

Characterized by disorientation, fear, and misperception of sensory stimuli

29
Q

Clouding of Consciousness

A

State of being confused, distracted and having poor memory

30
Q

LOCF I

A

No Response

deep sleep, unresponsive to any stimuli

31
Q

LOCF II

A

Generalized Response
patient reacts inconsistently and nonpurposefully to stimuli in a nonspecific manner. Response may be physiological changes, gross body movements and or vocalization

32
Q

LOCF III

A

Localized Response
patient reacts specifically but inconsistently to stimuli. Responses are directly related to type of stimuli. May follow commands (closing eyes) in an inconsistent, delayed manner

33
Q

LOCF IV

A

Confused-Agitated
heightened state of activity. behavior is bizarre and nonpurposeful. Does not discriminate among persons or objects; unable to cooperate directly with treatment efforts. Verbilizations are incoherent/inappropriate. Confabulation maybe present. Lacks short term and long term recall. Gross attention brief, selective attention nonexistent

34
Q

LOCF V

A

Confused-Inappropriate
able to respond to simple commands consistently; increased complexity of commands responses nonpurposeful, random. Gross attention highly distractable, lacks ability to focus on a specific task. Maybe able to converse on social level for short periods of time. Verbalization often confused and confabulatory. Memory impaired.Unable to learn new information

35
Q

LOCF VI

A

Confused-Appropriate
shows goal oriented behavorior but dependent on external input or direction. follows simple directions consistently and shows carry over. Responses maybe incorrect due to memory problems, but are appropriate to situation

36
Q

LOCF VII

A

Automatic-Appropriate
Appears appropriate and oriented, goes thru daily routine automatically, but frequent robot-like. Shows minimal confusion and shall recall of activities. Carry over for new learning, but at decreased rate

37
Q

LOCF VIII

A

Purposeful-Appropriate
able to recall and integrate past and recent events, aware and responsive to environment, shows carryover. may show decreased ability relative to premorbid abilities, abstract reasoning, tolerance for stress ad judgement in emergencies or unusual circumstances.