Case 120

Medical History

A 63-year-old female patient complains of profuse sweating and palpitations. She does not report headache or tremor. The patient has a 10-year history of difficult-to-control hypertension and insulin-dependent type 2 diabetes. She also has family history of sudden death in first-degree relatives. She shows some laboratory results which lead the treating physician to order an abdominal computed tomography.

Image 1: Abdominal computed tomography scan.

When evaluating patients with such clinical history, which biochemical testing must precede the imaging study?

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