A common cause of delirium among the elderly is
a. mutations of genes on chromosome 21.
b. antihistamines.
c. urinary tract infection.
d. normal decline in fluid intelligence.
Question 2
Studies suggest that Alzheimer's disease
a. is more common is Asian countries, than it is in North America.
b. is more common in North America and Europe, than it is in other areas.
c. is more common in developing countries, than it is in other places.
d. did not exist prior to the 1960s.