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Medical Emergencies · single question

A patient with Parkinson's disease presents with all of the following EXCEPT:

  1. Visual loss (not a core feature of Parkinson's disease, which is primarily a movement disorder)
  2. Akinesia (loss/poverty of movement)
  3. Bradykinesia (slowness of movement)
  4. Resting tremor (classically a 'pill-rolling' tremor)
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Correct answer: A. Visual loss (not a core feature of Parkinson's disease, which is primarily a movement disorder)

Parkinson's disease's cardinal features are bradykinesia, resting tremor, rigidity, and postural instability, with akinesia developing in more advanced disease. Visual loss is not a core or defining feature of Parkinson's disease, which is fundamentally a movement disorder caused by dopaminergic neuron loss in the substantia nigra.

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