A toddler is started on digoxin (Lanoxin) for cardiac failure. Which is the initial symptom the nurse would assess if the child develops digoxin (Lanoxin) toxicity?
1. Lowered blood pressure
2. Tinnitus
3. Ataxia
4. A change in heart rhythm
Correct Answer: 4
Rationale: An early sign of digoxin (Lanoxin) toxicity is a change in heart rhythm. Digoxin (Lanoxin) toxicity does not cause lowered blood pressure, tinnitus (ringing in the ears), or ataxia (unsteady gait).
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