A 56-year-old male is evaluated in the emergency department for progressive chest pain and dyspnea that began 3 hours ago. On physical exam, he is confused. Crackles are noted on pulmonary exam. Extremities are cool to the touch. The EKG shown reveals ST-segment elevations in multiple leads. Chest X-ray shows pulmonary edema. Which of the following is the most appropriate initial treatment for this patient?
a) Emergent coronary angiography
b) Intravenous diuretics
c) Anticoagulation with heparin
d) Oxygen supplementation
