A Patient Has Been in the Intensive Care Unit for a Week

A patient has been in the intensive care unit for a week receiving various procedures throughout the day and night. Currently the patient, though physiologically stable, is irritable and paranoid and complains of vivid dreams when dozing off to sleep. What are the best actions for the nurse to take at this time?

A) Check the patient's oxygen status.
B) Request an order for sleep medication.
C) Assess the patient's vital signs.
D) Turn down the lights at night and reduce noise to a minimum.
E) Schedule all tests and procedures before 9 p.m. or after 7 a.m.