A 58-Year-Old Man Has Had a Myocardial Infarction (MI), Has

A 58-year-old man has had a myocardial infarction (MI) , has begun rehabilitation, and is ready for discharge. He is given a prescription for metoprolol (Lopressor) and becomes upset after reading the patient education pamphlet. "I don't have high blood pressure-why did my doctor give me this medicine?" Which explanation by the nurse is correct?

A) "This medication will prevent blood clots that may lead to another heart attack."
B) "Beta blockers will improve blood flow to the kidneys."
C) "This drug is prescribed to prevent the high blood pressure that often occurs after a heart attack."
D) "Studies have shown that this medication has greatly increased survival rates in patients who have had a heart attack."