A nurse is reviewing the medication orders for a client who has heart failure. Which of the following prescriptions should the nurse clarify with the provider?

Dextrose 5% in 0.45% sodium chloride with 20 mEq KCI via continuous IV infusion at 50 mL/hr

Dobutamine 15 mcg/kg via continuous IV infusion

Digoxin 2.5 mcg/kg via IV bolus every 8 hr x 2 doses

Bumetanide 0.1 mg/kg via IV bolus every 12 hr