Pediatric Dentistry · single question
Which common symptom is MOST characteristic of hypoglycemia?
Show answer and explanation
Correct answer: A. Mental confusion
- A. Correct. Mental confusion (neuroglycopenia) is a hallmark of hypoglycemia — the brain is highly dependent on glucose and is rapidly affected when blood glucose falls. Other CNS symptoms include dizziness, tremor, and loss of consciousness.
- B. Tachycardia does occur in hypoglycemia (adrenergic response to low glucose) but is less distinctive and specific than mental confusion.
- C. Xerostomia is not a primary symptom of hypoglycemia; it is more associated with dehydration or medication side effects.
- D. Polyuria is a symptom of HYPERGLYCEMIA (osmotic diuresis), not hypoglycemia.
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