Review Question - QID 108859

A 53-year-old man presents to his primary care provider with chest pain that began when he was trying to take a nap after lunch. His symptoms have lasted for the past 30 minutes. He reports that the pain is central and dull and does not radiate anywhere. The patient recalls having a similar pain last week when he was sleeping at night but it was transient and much milder. On review of systems, he endorses the development of a mild cough over the last 2 weeks, which he attributed to a cold as well as a sour taste in his mouth. He denies any difficulty swallowing or halitosis. The patient has a past medical history of hyperlipidemia, obesity, and type 2 diabetes. His medications include atorvastatin and metformin. He has a family history of myocardial infarction in his father at age 51 and breast cancer in his mother at age 70. His temperature is 98.4°F (36.8°C), blood pressure is 147/92 mmHg, pulse is 80/min, and respirations are 14/min. He appears slightly uncomfortable but is not diaphoretic, and his exam is unremarkable. Which of the following is the most appropriate next step in management?