What is the priority intervention for an older adult client prescribed a phenothiazine for nausea?

The priority intervention for an older adult client prescribed a phenothiazine for nausea is to identify the client as a possible falls risk. Phenothiazines, which are often used as antiemetics, can cause sedation and dizziness as common side effects. In older adults, these effects can significantly increase the risk of falls, which is a major concern due to potential fractures or other injuries that can arise from such incidents.

Identifying a client as a falls risk allows healthcare providers to implement appropriate fall prevention strategies, such as ensuring a safe environment, providing assistance with ambulation, and educating the client on the importance of calling for help when moving around. Recognizing this risk is essential to ensure the client's safety while they are receiving treatment for nausea, particularly when using medications that can impair their balance or cognitive function.