Which symptom is more characteristic of adrenergic hypoglycemia?

• A. Confusion
• B. Sweating
• C. Blurred vision
• D. Weakness

Answer: (B)

Adrenergic hypoglycemia triggers warning symptoms from the sympathetic nervous system as glucose falls, with epinephrine release preparing the body to act. Sweating is a classic sign of this adrenergic response because the sympathetic system stimulates sweat glands, signaling an early alarm that glucose is dropping.

In contrast, confusion, blurred vision, and weakness come from the brain not getting enough glucose (neuroglycopenia). These neuroglycopenic signs tend to appear later or with more severe hypoglycemia, once brain energy failure has progressed.

So sweating stands out as the characteristic adrenergic symptom, reflecting the body’s immediate counterregulatory warning rather than direct brain energy failure.