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. Photosensitivity: Photosensitivity is a side effect of drugs like tetracyclines or sulfonamides, but not typically digoxin. B. Ataxia: Ataxia (loss of coordination) is more commonly associated with toxicity from anticonvulsants (like phenytoin) or sedatives, not cardiac glycosides. C. Anorexia: Digoxin has a narrow therapeutic index (0.8 to 2.0 ng/mL). Early signs of toxicity are often gastrointestinal and include anorexia (loss of appetite), nausea, and vomiting. Later signs include bradycardia, dysrhythmias, and visual disturbances (seeing halos or yellow-green vision). D. Jaundice: Jaundice indicates liver dysfunction or hemolysis. Digoxin is excreted by the kidneys; toxicity does not typically manifest as jaundice.