The Client Is Being Treated with Metoprolol

The client is being treated with metoprolol. The nurse notes that the client has been experiencing sinus bradycardia. What is the highest priority nursing intervention?

A) Call the physician; the medication is contraindicated if there is sinus bradycardia.
B) Teach the client that the medication schedule must be strictly adhered to.
C) Call the physician; the dosage should be increased when there is sinus bradycardia.
D) Teach the client that he should notify the physician if he experiences rapid heart rate.