Hyperthyroidism Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 60-year-old woman comes to the clinic due to progressive neck swelling and discomfort over the past few months. She first noticed it after a viral infection, but she did not seek care as she thought it would self-resolve. She generally feels well, and medical history is unremarkable other than 2 C-sections at the ages of 31 and 33. Family history is non-contributory. She has not had palpitations, weight loss, or skin changes. Temperature is 37.0°C (98.6°F), pulse is 85/min, and blood pressure is 125/85 mmHg. On physical examination, a non-tender goiter with an irregular surface is noted. The rest of the physical exam is within normal limits. Laboratory tests show low TSH and elevated free T3 and T4 serum levels. A radioactive iodine uptake test is performed, and the results are shown below:


Which of the following is the most likely diagnosis?

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