1st June 2026

Mr David Brown, a 70-year-old male, presents to the emergency department with a 2-hour history of chest pain occurring at rest.

Mr David Brown, a 70-year-old male, presents to the emergency department with a 2-hour history of chest pain occurring at rest. The pain is described as pressure-like and is not relieved by rest. He has a history of hypertension and type 2 diabetes mellitus. His initial ECG is normal, and the first troponin level is undetectable. He is given aspirin and nitroglycerin, and his symptoms resolve. What is the most appropriate next step to guide further management in this patient?

Select the SINGLE most appropriate option from the list below. Select ONE option only.