Final answer:
The nurse should monitor for xerostomia (dry mouth) and taste alterations as potential adverse effects in the patient undergoing radical head and neck resection and receiving radiation therapy.
Step-by-step explanation:
The nurse should monitor for xerostomia as a potential adverse effect in the patient who has undergone a radical head and neck resection and is receiving radiation therapy. Xerostomia refers to dry mouth, which occurs when salivary glands are exposed to radiation and damaged. The reduced saliva production can lead to difficulty in swallowing and speaking as well as an increased risk of dental caries and oral infections.
In addition, the nurse should also monitor for taste alterations in the patient. Radiation therapy can affect the taste buds and lead to changes in the sense of taste, such as a metallic taste or a reduction in the ability to taste certain flavors.