ST elevation without cardio-pulmonary symptoms

A 57-year-old man with no significant past medical history presented to the emergency department (ED) with complaints of dysuria, increased frequency of urination, and subjective fevers since 2 days. The patient denied any other symptoms. He did not have any chest pain, dyspnea, orthopnea, paroxysmal nocturnal dyspnea, dizziness, or palpitations. At the time of presentation, the patient did not have a history of syncope or seizures. He worked in construction and could tolerate exercise without dyspnea. He had no family history of arrhythmias, sudden cardiac death, or coronary artery disease. He smoked 20 cigarettes daily and had no history of alcohol or illicit drug use. Vital signs on presentation were as follows: temperature, 103 F (39.4 °C); blood pressure, 132/ 80 mmHg; pulse, 116/min; and respiratory rate, 17/min. Oxygen saturation was 100% on room air. Physical examination revealed mild suprapubic tenderness, without any guarding or rigidity. His cardiovascular examination revealed normal heart sounds, and regular rate and rhythm, without any murmurs, rubs, or gallops. There was no jugular venous distention, and the lungs were clear to auscultation bilaterally. He underwent electrocardiography (ECG) in the ED (Fig. 1). What would be the next most appropriate step in the management of this patient?