Medical Emergencies · single question
A patient with Parkinson's disease is being evaluated. All of the following are TRUE about Parkinson's disease EXCEPT:
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Correct answer: D. Visual loss (progressive blindness)
Visual loss is NOT a feature of Parkinson's disease. Parkinson's is characterized by the classic motor tetrad: tremor (resting/pill-rolling), rigidity (cogwheel or lead-pipe), akinesia/bradykinesia, and postural instability. Non-motor symptoms include: dementia, depression, autonomic dysfunction, and anosmia. Visual loss is NOT a defining feature. Parkinson's results from loss of dopaminergic neurons in the substantia nigra.
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