The prerequisite to apply the Movement Disorder Society (MDS-PD) criteria is the diagnosis of parkinsonism, which is based on three cardinal motor manifestations. Parkinsonism is defined as bradykinesia, in combination with either rest tremor, rigidity, or both. These features must be clearly demonstrable and not attributable to confounding factors.
PD
Diagnostic Criteria for Parkinson’s Disease (PD)
United Kingdom Parkinson’s Disease Society Brain Bank Diagnostic Criteria for Parkinson’s Disease
Step 1: Diagnosis of Parkinsonism
Bradykinesia and at least one of the following: