What would you expect the potassium level to be in primary adrenal insufficiency?

In primary adrenal insufficiency, also known as Addison's disease, the adrenal glands do not produce sufficient amounts of cortisol and aldosterone. Aldosterone is a key hormone that helps regulate sodium and potassium levels in the body. When aldosterone production is decreased, as seen in this condition, the kidneys are less able to excrete potassium, leading to an accumulation of potassium in the bloodstream.

As a result, the expected potassium level in primary adrenal insufficiency is high, or hyperkalemia. This elevation occurs because the lack of adequate aldosterone prevents the proper renal handling of potassium, resulting in its retention. Understanding this mechanism is crucial for recognizing the electrolyte imbalances associated with adrenal disorders and for managing patients presenting with these conditions.