- A Increased skin pigmentation linked to elevated ACTH
- B Weakness and fatigue from impaired glucose mobilization
- C Low blood sodium from reduced aldosterone activity
- D Increased blood pressure due to sodium retention
Correct answer: D. Increased blood pressure due to sodium retention
Explanation: Addison's disease lowers aldosterone and cortisol, causing sodium loss, hypotension (not increased blood pressure), fatigue, and hyperpigmentation from compensatory ACTH rise.
Concept context
The endocrine glands, hormone classification and mechanism of action, and negative feedback regulation.