A 42 year old woman presents with fatigue, weight loss, postural dizziness and hyperpigmentation. Morning serum cortisol is low and ACTH is elevated. ...

Question

A 42 year old woman presents with fatigue, weight loss, postural dizziness and hyperpigmentation. Morning serum cortisol is low and ACTH is elevated. What is the most likely diagnosis?

Accepted Answer

Primary adrenal insufficiency (Addison disease)

Answer

Secondary adrenal insufficiency due to pituitary disease

Answer

Cushing syndrome

Answer

Phaeochromocytoma

Answer

Hyperthyroidism

au-racp MCQ (SBA): Adrenal insufficiency diagnostic testing

A 42 year old woman presents with fatigue, weight loss, postural dizziness and hyperpigmentation. Morning serum cortisol is low and ACTH is elevated. What is the most likely diagnosis?