My 67 year old husband was determined to be "borderline" for cognitive impairment based on a SLUMS exam given by his neurologist this past spring. His follow up exam was today and the neurologist recommended he have the 4 hour diagnostic exam as soon as they can get him in in order to exclude other possible reasons for his cognitive impairment such as Aspbergers, ADHD, etc. She implies that this test would answer all our questions and give us a more definitive diagnosis. Does anyone else have experience with this test and is it truly accurate for diagnostic purposes? The neuro did NOT give him any further in-office cognitive exams at today's visit.