The Nurse Cares for a Client Seen in the Cardiology

The nurse cares for a client seen in the cardiology office for atrial fibrillation.The client remains asymptomatic except for increased heart rate with an increase in fatigue and shortness of breath upon exertion.The health care provider prescribes verapamil (Calan) .Which of the following statements indicates the client understands why the medication is prescribed?

A) "I should not take the medication with grapefruit."
B) "Taking this medication might cause me to need a pacemaker."
C) "This medication will allow my heart to go back into normal sinus rhythm."
D) "This medication will slow my heart rate so I won't get so fatigued."