The Client Who Is to Receive Cardioversion in 3 Days

The client who is to receive cardioversion in 3 days for treatment of continuous atrial fibrillation has laboratory values of Na 139 mEq/L, K 4.0 mEq/L, and Cl 98 mEq/L and is receiving digoxin 0.125 mg daily. Before the procedure the nurse would

A) confirm an order for a digoxin level before cardioversion.
B) monitor blood pressure more frequently.
C) notify the physician regarding the potassium level.
D) proceed with preparation for cardioversion.