system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 17-year-old boy presents to the emergency department for the evaluation of severe chest pain that started one hour ago. The pain suddenly began after he lifted a heavy object and the pain is constant. He has no history of a serious illness and takes no medications. His blood pressure is 125/85 mm Hg, the pulse is 89/min, the respiratory rate is 15/min, and the temperature is 36.7°C (98.1°F). Examination of the supraclavicular notch shows mild swelling of the skin with crepitation on palpation. Auscultation of the precordium in the left lateral decubitus position reveals a clicking sound with every heartbeat. The remainder of the physical examination shows no abnormalities. A chest X-ray is shown. Which of the following is the most appropriate next step in management?
assistant
Supplemental oxygen