Final answer:
The nurse would likely administer Lanoxin (digoxin) to a client preparing for cardioversion to help restore normal heart rhythm and improve heart function.
Step-by-step explanation:
The nurse would anticipate administering Lanoxin (digoxin) to a client preparing for cardioversion. Lanoxin is used to improve heart function and control the heart rate in various cardiac conditions, which could be beneficial in the context of cardioversion. Cardioversion is a medical procedure that restores a normal heart rhythm in patients with certain types of abnormal heartbeats (arrhythmias). Lanoxin, by exerting a positive inotropic effect and slowing down the heart rate through vagal stimulation, helps in making the cardioversion process more effective.
As for the other medication options, Valium is an anti-anxiety medication that may be used to relax a patient before cardioversion but is not directly involved in the cardioversion process. Vasotec (enalapril) is an ACE inhibitor used to treat high blood pressure and heart failure, and Atropine is often used in situations of bradycardia (slow heart rate) but not usually in preparation for cardioversion.