preoperative assessment

A 67-year-old man with a history of hypertension and type 2 diabetes is scheduled for elective cholecystectomy due to symptomatic gallstones. During the preoperative assessment, he mentions experiencing mild chest discomfort during exertion over the past few weeks. What is the most appropriate next step in his preoperative management?

A 45-year-old woman presents to her GP with recurrent episodes of biliary colic. An ultrasound confirms the presence of multiple gallstones. She is otherwise healthy with no significant past medical history. After discussing management options, she opts for a laparoscopic cholecystectomy. Which of the following is the MOST appropriate next step in her preoperative assessment, according to Australian guidelines?