Question

A 30-year-old woman has episodes of weakness, fatigue, and hyperpigmentation. Investigations reveal hyponatraemia, hyperkalaemia, and low cortisol. Which test, according to NICE, is used to confirm the diagnosis of primary adrenal insufficiency?

Accepted Answer

ACTH stimulation (Synacthen) test

Answer

Random serum cortisol measurement

Answer

Dexamethasone suppression test

Answer

Midnight salivary cortisol

Answer

MRI of the adrenals

Practice question

A 30-year-old woman has episodes of weakness, fatigue, and hyperpigmentation. Investigations reveal hyponatraemia, hyperkalaemia, and low cortisol. Which test, according to NICE, is used to confirm the diagnosis of primary adrenal insufficiency?