Disorders of the Adrenal Gland Practice Test 2026 - Free Adrenal Gland Disorders Practice Questions and Study Guide

When adrenal hypofunction is present, the mineralocorticoid aldosterone is a key determinant of immediate stability because it controls sodium and water balance and potassium excretion. Loss of aldosterone can cause rapid volume depletion, hyponatremia, hyperkalemia, and hypotension, leading to adrenal crisis and shock if not promptly identified and treated. Therefore, the patient who is experiencing loss of aldosterone is the one at highest risk for a life-threatening emergency and should be assessed first to address potential hemodynamic instability and electrolyte derangements.

The other scenarios reflect hypercortisolism or conditions with excess aldosterone, not acute adrenal insufficiency. Moonface and elevated cortisol point to Cushing syndrome, and Cushing disease post-surgery likewise involves high cortisol levels. Conn syndrome involves primary hyperaldosteronism with too much aldosterone, not a deficiency, so these are not the immediate priorities in the context of adrenal hypofunction.