A nurse is assessing an older adult client who is receiving digoxin. The nurse should recognize that which of the following findings is a manifestation of digoxin toxicity?

A. Ataxia, or impaired coordination and balance, is not a common manifestation of digoxin toxicity. While digoxin toxicity can produce neurologic symptoms such as confusion, visual changes, or fatigue, ataxia is more commonly related to neurological disorders, vestibular dysfunction, or other medications (e.g., anticonvulsants or sedatives), rather than digoxin. B. Anorexia, along with nausea and vomiting, is one of the earliest and most reliable signs of digoxin toxicity. These gastrointestinal symptoms often appear before more serious cardiac manifestations, such as arrhythmias. Older adults are at higher risk for digoxin toxicity due to age-related decreases in renal function, lower lean body mass, and altered drug metabolism, which increase serum digoxin levels even at standard doses. Recognizing anorexia early is crucial to prevent progression to severe toxicity, including life-threatening dysrhythmias. C. Jaundice results from hepatic dysfunction, hemolysis, or bile obstruction, and is not associated with digoxin therapy. Digoxin is minimally metabolized by the liver, and hepatotoxicity is rare. D. Photosensitivity is typically associated with certain antibiotics, chemotherapy agents, and dermatologic medications. It is not linked to digoxin use and is therefore an irrelevant indicator of toxicity.