Which of the following is a risk factor for the development of delirium in older adults?
1. A lack of rigorous exercise that leads to decreased cerebral blood flow
2. Decreased social interaction that leads to profound isolation and psychosis
3. Administration of multiple medications that may cause drug–drug interactions or toxicity
4. Age-related cognitive changes that make older adult clients more susceptible to changes in mental status
3
Rationale: Multiple medications may cause drug–drug interactions or toxicity that can cause delirium. While the older adult client is at higher risk for delirium, it is not from age-related cognitive changes. A lack of rigorous exercise will not promote delirium. Decreased social interaction can exacerbate delirium but not cause delirium.
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