HPI: Tony is a 69-year-old Caucasian male with a history of a right-hand tremor

HPI: Tony is a 69-year-old Caucasian male with a history of a right-hand tremor for several years. He is accompanied by his wife today to the clinic who is very concerned because Tony is having difficulty with balance and walking, which is becoming slower.
1. You suspect Parkinson’s disease (PD). Briefly describe the etiology of PD.
2. What other family history, social history, and vital signs will you obtain from the wife and the patient?
3. Describe at least three neurological examinations you will perform that will help you evaluate for PD.
4. Diagnostics: You know that PD is primarily a clinical diagnosis, but there are several diagnostic tests that can be useful in making the diagnosis. Describe at least two diagnostic tests that may be helpful in the diagnosis of PD.
-What are some of the key principles of treatment? List at least two principles of treatment.
References no less than 5 years old.