Difficulty: Medium
Average Score: 83%
Simulated
Which of the following is a characteristic sign of hyperthyroidism?
Correct answer
C
Rationale
The correct answer is C: Tremors and nervousness. Hyperthyroidism is an overactive thyroid gland leading to an excess of thyroid hormones. Tremors and nervousness are classic symptoms due to the increased metabolic rate. Cold intolerance (A) is a symptom of hypothyroidism, not hyperthyroidism. Fatigue and lethargy (B) are common in hypothyroidism, not hyperthyroidism. Weight gain (D) is also more indicative of hypothyroidism. Therefore, the presence of tremors and nervousness (C) is the characteristic sign of hyperthyroidism.