11th August 2020

A 45-year-old female presents to her GP with a four-week history of fatigue, anorexia and weight loss

A 45-year-old female presents to her GP with a four-week history of fatigue, anorexia and weight loss. She has additionally experienced episodes on nausea and vomiting over the last week. She is normally fit and well with no past medical history of note. On examination, you note her blood pressure is 100/80, and she appears to have areas of hyperpigmentation, particularly on her elbows and palmar creases. 

A diagnosis of Addison’s disease is suspected. Which of the following first-line investigation results would be most suggestive of this diagnosis?

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