Family members bring their 75-year-old father into the hospital because of what they perceive as ...

Family members bring their 75-year-old father into the hospital because of what they perceive as deteriorating mental status.
 
  They think he should be placed in a nursing home, even though he has no significant chronic health problems.
  a. Not knowing anything more about this patient other than the above information, compare the expected or normal neurological and cognitive assessment data in this healthy 75-year-old to that of a healthy 35-year-old.
  b. What techniques or strategies would you engage to differentiate neurological alterations due to a disease or pathological condition from expected age-related changes?