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Anesthesia · single question

Which of the following is NOT a common symptom of hypoglycemia?

  1. Mental confusion
  2. Xerostomia (dry mouth)
  3. Tachycardia
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Correct answer: B. Xerostomia (dry mouth)

Hypoglycemia classically presents with adrenergic/neuroglycopenic symptoms — sweating (often profuse), tachycardia, tremor, confusion, irritability, and hunger. Xerostomia is not a typical hypoglycemia symptom; it's more associated with anxiety, medication side effects, or hyperglycemia/dehydration states, making it the exception here.
  • A. Tachycardia (rapid heart rate) IS a symptom of hypoglycemia — part of the adrenergic/sympathetic response to low glucose (palpitations, tachycardia, tremor, sweating).
  • B. Diaphoresis (sweating) IS a classic hypoglycemia symptom — part of the adrenergic response.
  • C. XEROSTOMIA (dry mouth) is NOT a symptom of hypoglycemia. Dry mouth is associated with dehydration, xerogenic medications, and hyperglycemia — NOT with low blood sugar. This is the exception.

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