Final answer:
Vomiting and bradycardia are classical signs of digoxin toxicity in infants. These symptoms should be closely monitored by healthcare providers as they can indicate an overdose of the medication.
Step-by-step explanation:
The nurse monitoring an infant for digoxin toxicity should be aware of several key manifestations. Digoxin toxicity is indicated by symptoms such as vomiting and bradycardia (decreased heart rate), along with other potential signs such as nausea, abdominal pain, fatigue, confusion, and changes in vision. Of the options provided, vomiting and bradycardia (Answer d) are classical signs of digoxin toxicity in pediatric patients.
It's critical to distinguish these symptoms from others that are less commonly associated with digoxin toxicity, like increased appetite or hypertension, which are not typically observed in cases of digoxin overdose. Therefore, healthcare providers should monitor heart rate and be vigilant for gastrointestinal symptoms when evaluating digoxin levels in an infant.