Last Wednesday, my father (76, ~3 years PD) fell in the living room. He did not apparently suffer serious injury, but he could not get up. He called an ambulance using a pendant which triggered an automatic dialer. He was taken to the hospital emergency room that afternoon. (They X-rayed him for head injuries, as I understand, and found none, although he had a bump over his eye.) The doctor kept him in the hospital for observation, and to treat an inflammation on his left leg. Thursday evening, he started to suffer confusion about his surroundings and condition. The confusion has continued through today, although the hospital staff tells me that he has periods of lucidity. The doctor ordered an MRI (magnetic resonance imaging), which was performed Monday and showed no apparent abnormalities. The confusion is severe enough, however, that my father has trouble eating, and he is often unaware of his surroundings. It has now persisted for six days. He is taking only Sinemet (5.5 25/100 tablets a day before his hospitalization, and I think the doctor has reduced the dose.) The doctor stopped his Parlodel a few months ago after he started having severe hallucinations. Has anyone else had this problem, or known a patient who has had it? Is this a common side effect of Parkinson's? -Bill