question: History of 2 years of memory decline. 3 months of neuropsychology testing agreed with memory and processing decline. CT scan showed micro-ischemic changes. Pet Scan showed temporal and frontal hypometabolism. Diagnosed with early-onset alzheimers, I have strong History of Alzheimer s in family. having a MRA done next week to check vessels in brain. I am a retired RN, 58 yrs old. Other tests or go with diagnosis?