Assessment of Cognitive function Flashcards
What domains are included in cognition
Memory
Executive Function
Arousal & Attention
Visual & Spatial Processing
Processing Speed
Motor Skills
Language
Why assess cognition?
To help determin:
-What is going on
-What is going to happen
-How can we then help?
-If functioning has changed, then the recovery and effectiveness of intervention
What can be the challenges when assessing a patients cognition?
Everything else tha ti sgoing on around (distractions)
Differential diagnoses
Surgical/post surgical side effects
Communucation issues
Difficulty to build raport
Fatigue
Resource demand
What are the key differences: Depression, Delerium, Dementia, Schizophrenia?
Delerium:
Acute onset, clouded and disorientated, poor attention and short term memory, may have psychosis and have abnormal EEG
DEmenti:
Steadily progressive onset. Poor short term memory and abnormal EEG
Depression:Diurnal variation, poor attention, occasional psychosis, normal EEG
Schizophrena: Poor attention, frequent psychosis, normal EEG
Quick red flags for cognitive impirment
-Lengthy entries and correspondence
-Particular disciplines (e.g. neurology, psychiatry, psychology)
-Relevant laboratory findings and imaging
-Medications
How to do a bedside assesment?
OBERVATIONS ARE KEY!!!
Interactions: awareness and of history, recall, interests, motivation
Cognitive screens - eg GAD/PHQ-9
Collateral - nurse team, other team members, family/significant others
What is a really important of introduction
DO ONE! And reassure them!! Explain who you are, what your role is and what you are there to do to help
What are cognitive screens used for?
Quick vague assessment. to detect any signs of cognitive impairment
Are cognitive screens diagnostic tools?
NO
What ARE screens used for?
Red flags, provide a quick baseline
When wouldn’t you do a cognitive screen?
- known learning disability
- sedated to the extent that it is likely they will not be able to attend properly.
- delirious or experiencing hallucinations
- distressed about completing the test or refuses to complete
Validity vs reliability of choosing tests
Validity = For specific condition/what you are after looking at (does what it says it does)
Reliability = Inter-rater – different tests get the same result
If retested should get the same results
why mini mental state examintaion mightn’t be of use
So many reasons:
-communucation/education issues
-not very specific
-easy for false positives/negatives
What does the Montrelal Cognitive Assessment evaluate? How long does it take?
Takes about 15 minute. Good for assessing dementia and now can be used for other conditions too
Montreal Cognative Assesment normal score
26