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Medical Emergencies · single question

All of the following are signs and symptoms of hyperthyroidism EXCEPT:

  1. Tremors
  2. Weight loss
  3. Lethargy
  4. Tachycardia
Show answer and explanation

Correct answer: C. Lethargy

  • A. Incorrect. Fine hand tremors ARE present in hyperthyroidism due to increased sympathomimetic activity and adrenergic stimulation.
  • B. Incorrect. Weight loss IS a sign of hyperthyroidism despite increased appetite — the accelerated metabolism consumes more calories than can be consumed.
  • C. CORRECT. Lethargy and fatigue are classic signs of HYPOTHYROIDISM — low thyroid hormone slows metabolism. Hyperthyroidism presents with the OPPOSITE: hyperactivity, restlessness, anxiety, and insomnia due to the excess metabolic stimulation.
  • D. Incorrect. Tachycardia IS a sign of hyperthyroidism — elevated T3/T4 increases heart rate and cardiac output.

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