Movement Disorders USMLE Step 1 Practice Question
A 42-year-old woman presents with a tremor most prominent when holding her arms outstretched while pouring coffee. Vital signs show HR 88/min, BP 128/76 mmHg, RR 14/min, temp 37°C. The tremor worsens with anxiety and improves after alcohol consumption. She denies taking propranolol or other medications. Neurologic examination reveals no rigidity, bradykinesia, or postural instability. Brain MRI is normal. Which of the following is the most likely diagnosis?
Answer choices
- ATardive dyskinesia
- BIntention tremor from cerebellar disease
- CEssential tremorCorrect answer
- DAsterixis
- EParkinson disease
- FPhysiologic tremor from hyperthyroidism
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