Parkinson's Disease Genetics Database

"The blood collection is designed to obtain blood samples as a source of DNA for genotyping and to establish a plasma and serum storage repository for future assays. GCRC nurses will perform all blood draws associated with this study. The following procedures are designed to standardize sample collection:~1. Blood will be collected with the participant in the seated position with the reclining position reserved for those with a history of fainting during blood collection.~2. Participants will be instructed to drink plenty of water (e.g., at least 8 large glasses of water) prior to the clinic visit as this facilitates easier collection.~3. No fasting, activity or medication restrictions are required prior to or following blood collection.~4. Blood collection will follow completion of the questionnaires. They will be performed by a nurse or technician with documented class time and experience in phlebotomy. Technician certification will occur prior to blood collection."