27th May 2025

A 36-year-old patient with refractory hypertension undergoes a CT scan to investigate for secondary causes of hypertension.

A 36-year-old patient with refractory hypertension undergoes a CT scan to investigate for secondary causes of hypertension. A mass is detected, and therefore a diagnosis of either phaeochromocytoma or primary hyperaldosteronism is suspected. For the latter diagnosis, what would be the expected findings from a fludrocortisone suppression test?

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