A nurse is caring for a client who reports xerostomia following radiation therapy to the mandible. Which of the following is an appropriate action by the nurse?

Rationale: A. Provide humidification of the room air: Xerostomia, or dry mouth, often results from radiation therapy to the head and neck region. Humidifying room air adds moisture to the environment, helping relieve oral dryness and improving comfort, especially during sleep. B. Suggest rinsing his mouth with an alcohol-based mouth wash: Alcohol-based mouthwashes can worsen oral dryness and irritate mucosal tissues, making xerostomia more uncomfortable. Clients should instead use alcohol-free or moisturizing rinses. C. Instruct the client on the use of esophageal speech: Esophageal speech is a communication method taught to clients after laryngectomy, not for xerostomia. It does not address dry mouth and is unrelated to the effects of mandibular radiation. D. Offer the client saltine crackers between meals: Saltine crackers are dry and salty, which can exacerbate oral dryness and discomfort. Clients with xerostomia benefit more from moist, soft foods and frequent sips of water.