A nurse is reviewing a client's cardiac monitor. Which of the following findings should the nurse identify as an indication for synchronized cardioversion?

A. Xerostomia: Radiation therapy to the head and neck often damages the salivary glands, leading to xerostomia, or dry mouth. This can cause difficulty in speaking, swallowing, and an increased risk of oral infections. Providing oral hydration and saliva substitutes can help manage this side effect.

B. Epistaxis: While radiation therapy can cause mucosal irritation, epistaxis (nosebleeds) is not a common side effect. Epistaxis is more frequently associated with conditions such as nasal trauma, clotting disorders, or chemotherapy-induced thrombocytopenia rather than localized radiation therapy.

C. Tinnitus: Radiation therapy does not typically cause tinnitus, which is more commonly linked to ototoxic medications, prolonged noise exposure, or inner ear disorders. If a tumor or treatment affects the auditory structures, hearing-related symptoms may occur but are not a primary radiation side effect.

D. Diplopia: Double vision is not a usual complication of radiation therapy to the head and neck. Diplopia is more commonly associated with neurological conditions, cranial nerve dysfunction, or ocular disorders rather than radiation-induced effects on surrounding tissues.

A. Fluid overload: While NG tubes can be used for enteral feeding, they are often associated with fluid losses from suctioning or drainage rather than overload. Clients with NG tubes are more prone to dehydration and electrolyte imbalances.

B. Metabolic acidosis: NG tube suctioning primarily removes gastric contents, which are rich in hydrochloric acid. This can lead to metabolic alkalosis rather than acidosis due to excessive loss of acidic gastric secretions.

C. Hyponatremia: Prolonged NG tube suctioning or drainage can lead to the loss of sodium-rich gastric secretions, resulting in hyponatremia. Monitoring electrolyte levels and replacing lost fluids appropriately is essential to prevent imbalances.

D. Constipation: NG tubes are more commonly associated with diarrhea due to enteral feeding formulas rather than constipation. However, reduced oral intake and immobility could contribute to constipation in some cases.