The nurse is caring for a patient who is taking digoxin to treat heart failure. The patient's electrocardiogram shows a ventricular dysrhythmia. The nurse will notify the provider and will anticipate an order for which medication?
a. Digoxin immune Fab (Digibind)
b. Furosemide (Lasix)
c. Phenytoin (Dilantin)
d. Potassium
ANS: C
The antidysrhythmics phenytoin and lidocaine are effective in treating digoxin-induced ventricular dysrhythmias. Digoxin immune Fab is used to treat severe digitalis toxicity, characterized by bradycardia, nausea, and vomiting. Unless a potassium deficit is present, giving potassium could worsen the dysrhythmia.
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