What is alzheimer's disease?
a. a group of defects that occur as a result of the mother ingesting alcohol during pregnancy
b. disorder that rapidly kills brain cells and causes dementia
c. fear of being away from the primary caregiver
d. when a child believes that nothing exists outside him/herself, and she/he is incapable of understanding someone else's position

A75-year-old client was admitted to the hospital after having sustained a fall at home. she is diagnosed with a right hip fracture and is scheduled for surgery in the morning. at 2: 30 am she awakens from sleep with confusion about where she is. she insists that her daughter is in the other room and wants to see her. you attempt to reorient her to the surroundings with little success. she continues to insist that her daughter is in the next room. in reviewing the client’s record, what data would be considered a source of her confusion?