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HardCardiologyAcute aortic dissectionca-mccqe1ca-rcpsc-em

A 52-year-old man with hypertension presents with sudden, severe, tearing chest pain radiating to the back. Blood pressure is 190/110 mm Hg, and he has unequal arm pressures. According to Canadian emergency cardiovascular care recommendations, what is the most appropriate immediate diagnostic test?

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