au-amc MCQ (SBA): Primary adrenal insufficiency

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MediumEndocrinologyPrimary adrenal insufficiencyau-amcau-racp

A 46-year-old woman presents with progressive fatigue, weight loss, postural dizziness and hyperpigmentation of the palmar creases. BP is 90/60 mmHg lying, 70/50 mmHg standing. Sodium is 128 mmol/L, potassium 5.8 mmol/L. Morning serum cortisol is 80 nmol/L (low). What is the most appropriate next diagnostic test to confirm the diagnosis?

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au-amc MCQ: Primary adrenal insufficiency — Answer & Explanation | iat