10.1 Dementia Overview and Pathology Flashcards

1
Q

what is the aging process?

A
  1. normal age-related decline in cognition
  2. age associated memory impairment
  3. dementia
  4. mild cognitive impairment
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2
Q

what are the domains of dementia?

A

complex attention, executive function, learning and memory, language, perceptual-motor, or social cognition

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3
Q

dementia can be due to

A

AD, frontotemporal lobar degeneration, levi body disease, vascular disease, TBI, substance/medication use, HIV/AIDS, prion disease, PD, HD

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4
Q

when diagnosing dementia you must specify…

A

with or without behavioral disturbance

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5
Q

what is the first diagnostic criteria of major neurocognitive disorder?

A

evidence of a significant cognitive decline from a previous level of performance in one or more cognitive domains

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6
Q

what does the evidence of significant decline based on?

A
  1. concern of the individual, family member, or clinician that there has been a decline
  2. documented by standardized neuroscience psychological testing
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7
Q

what is the second diagnostic criteria for major neurocognitive disorder?

A

cognitive deficits interfere with independence in everyday activities

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8
Q

what is the third diagnostic criteria for major neurocognitive disorder?

A

cognitive deficits do not occur exclusively int he context of delirium

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9
Q

what is the fourth diagnostic criteria for major neurocognitive disorder?

A

the cognitive deficits are not better explained by something else

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10
Q

what’s the difference between major neurocognitive disorder and minor?

A

evidence of modest decline and these effects DO NOT interfere with everyday activities

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11
Q

a good case history for dementia can include:

A

medical history
detailed family history
social history
medication list

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12
Q

what’s in a good medical history file?

A

physical respiratory function, baseline conditions, neurologic exam, detailed family hx, social history, medications list

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13
Q

diseases that can cause dementia

A
Vascular dementia
Lewy body disease/dementia
Huntington’s disease
MS
Infections
Parkinson’s disease
Pick disease
Brain injury/tumors
Chronic EtOH abuse
Normal pressure Hydrocephalus
Depression
Others (CHF, Hypoglycemia, diabetes, etc.)
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14
Q

sensory memory

A

attention, alertness, arousal processes;
visual, auditory, tactile, olfactory;
unconscious awareness

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15
Q

short term working memory

A

involves encoding processes, temporary storage of limited capacity

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16
Q

long term memory

A

involves retrieving processes and permanent storage of information

17
Q

declarative memory

A

(long term)

person’s base, consciousness awareness

18
Q

semantic memory

A

(long term) knowledge of world, facts, ideas

19
Q

episodic memory

A

knowledge of personal experiences (autobiographical)

20
Q

non declarative (implicit)

A

procedural memory, motor memory, memory for sequenced motor tasks (unconscious)

21
Q

procedural memory

A

sequenced motor tasks

riding a bike

22
Q

when diagnosing dementia, neurologists look for

A

neural changes in combination with behavioral changes

23
Q

what are CT scans

A

xray image of intracranial structures

exposer to radiation is not good.

24
Q

what is cortical atrophy?

A

cell death

25
Q

fMRI

A

measures blood flow during tasks to examine function (reduced blood flow in dementia)

26
Q

pet scanning

A

measures glucose metabolism by injecting radioactive glucose (reduced metabolism in areas related to memory and cognition in dementia)

27
Q

SPECT

A

radioactive isotope injected in bloodstream, visualized by gamma camera
(reduced blood flow in regions that are not working during a task)

28
Q

EEG

A

measures electrical activity via surface elctrodes

29
Q

we hope to diagnose before symptoms in order to…

A
  1. Halt disease progression
  2. Minimize disease severity
  3. Reverse disease symptoms