Endocrine disorders · Physiology

Hyperthyroidism is characterized by increased levels of:

  1. TSH only
  2. T3 and T4
  3. Calcitonin
  4. Parathyroid hormone
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Correct answer: T3 and T4

Hyperthyroidism involves excess secretion of thyroid hormones T3 and T4. This increases metabolic rate.

Difficulty: Medium Question 3 of 19

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