The Nurse Instructs a Family of an 87-Year-Old Resident in a Long-Term

The nurse instructs a family of an 87-year-old resident in a long-term care facility that his nocturnal delirium is most likely caused by: (Select all that apply.)

A) his schedule changing as a result of recent admission to the facility.
B) lack of adequate medication for anxiety.
C) increased shadows of the evening hours.
D) dehydration.
E) food allergy.