Yоu аre mаnаging a 57-year-оld male diabetic whо is complaining of shortness of breath. His lung sounds are clear, neck veins are distended, pulse is 70, respirations are 24, blood sugar is 90 mg/dL, and the blood pressure is 72/50. A 12 lead reveals elevation of the ST segment in Leads II, III, and AVF. After oxygen, which of the following should be your initial treatment option in this situation?