Endocrine and Reproductive Disorders · USMLE Step 1

A patient presents with heat intolerance, palpitations, and tremor. Labs reveal low TSH and elevated T3/T4. What is the most likely diagnosis?

  1. Hypothyroidism
  2. Graves disease
  3. Hashimoto thyroiditis
  4. Subacute (De Quervain) thyroiditis
Show answer and explanation

Correct answer: Graves disease

Graves disease is an autoimmune hyperthyroidism with elevated T3/T4 and suppressed TSH. Symptoms include tachycardia, tremor, and heat intolerance.

Difficulty: Medium Question 3 of 20

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