Preview of the Tool
 
Practice Recommendations
 
Adapted with permission from Registered Nurses Association of Ontario, Nursing Best Practice Guideline: Screening for Delirium, Dementia and Depression in Older Adults, November, 2003
 
Deterioration Cognitive Observee (DECO)
The DECO questionnaire is to be completed by a person, such as a family member, who has had at least monthly contact with the client for the last 3 years.
A. Instruct the person who is completing the form to:
Consider how their relative was a year ago. Explain that the questions they are answering relate to everyday situations – the decisions are based on what they know about the person who is suspected of having an illness that has affected how the person is thinking and behaving.
Direct the person filling out the form to indicate their answers as either: Better or about the same (2), Not as well (1), Much worse (0).
B. Scoring the form:
The total score may range from 0 (indicates considerable change) to 38 (indicates no change). A score of less than 30 indicates high likelihood of dementia and warrants further investigation and referral.