A man complains of substernal chest pain radiating to his left arm and jaw. He reports that he has vomited once and continues to feel nauseated. He is sitting upright, appears to be short of breath,...

A man complains of substernal chest pain radiating to his left arm and jaw. He reports that he has vomited once and continues to feel nauseated. He is sitting upright, appears to be short of breath, and is sweating profusely. Your patient’s symptoms most probably are related to:

a. Pacemaker failure       c. Hypertensive crisis

b. Pulmonary edema      d. Acute myocardial infarction