The Nurse Is Providing Care to a Patient Who Is

The nurse is providing care to a patient who is admitted to the emergency department with clinical manifestations of a myocardial infarction (MI) . Which are the primary purposes for the administration of morphine to this patient?

A) Increasing blood pressure and heart rate
B) Preventing extension of damage and increasing venous return
C) Promoting vasodilation and pain relief
D) Reducing blood pressure and increasing urine output