How do you approach a patient with both a resting and action tremor, suggestive of PD and essential tremor together?   

This is a wonderful question. To answer this question, we first have to look at the underlying etiology that leads to action tremor in PD. The hallmark of Parkinson's Disease (PD) is rest tremor, and about 75% of patients with PD have rest tremor at some point in their disease course (typically more...