Which medication is appropriate to prescribe for a 68-year-old client with schizophrenia?

Choice A reason: Aripiprazole is a preferred antipsychotic for the elderly due to its partial dopamine agonism, which results in a lower risk of extrapyramidal symptoms and less sedation. It is "metabolically neutral" compared to many other atypical antipsychotics, making it a safer option for patients over age 65 who may have comorbid cardiovascular or metabolic conditions. Choice B reason: Haloperidol is a first-generation antipsychotic associated with a high incidence of extrapyramidal symptoms and tardive dyskinesia, particularly in older adults. Geriatric patients are more sensitive to these motor side effects. The American Geriatrics Society Beers Criteria generally recommends avoiding or using extreme caution with first-generation antipsychotics in this population. Choice C reason: Olanzapine is associated with a high risk of significant weight gain, hyperlipidemia, and diabetes. In a 68-year-old client, these metabolic burdens increase the risk of stroke and myocardial infarction. Due to these risks, it is generally considered a second- or third-line choice compared to cleaner options like aripiprazole or risperidone in older adults. Choice D reason: Ziprasidone carries a significant risk of prolonging the QTc interval on an electrocardiogram. Older adults often have underlying cardiac issues or are taking other medications that prolong the QTc, making ziprasidone a riskier choice. Additionally, the requirement to take it with a 500-calorie meal can interfere with compliance and absorption in geriatric patients.