Final answer:
In an older patient receiving digitalis, watch for signs of digitalis toxicity, including nausea, confusion, and arrhythmias. Regular monitoring of electrolytes and kidney function is key to preventing toxicity.
Step-by-step explanation:
When monitoring an older patient receiving digitalis, you should watch for signs of digitalis toxicity, which is particularly relevant as the elderly may be more sensitive to the medication. Symptoms of digitalis toxicity may include visual disturbances (e.g., yellow or green halos around lights), nausea, vomiting, diarrhea, confusion, possible cherry-red skin, possible cyanosis, confusion, patients may gasp for air, and seizures prior to death. It's also important to note changes in heart rate or rhythm, as digitalis can cause arrhythmias. Regular monitoring of the patient's electrolyte levels, kidney function, and digitalis levels can help prevent toxicity.