An Older Adult Patient Being Treated for Chronic Obstructive Pulmonary

An older adult patient being treated for chronic obstructive pulmonary disease (COPD) is exhibiting signs of memory loss and confusion.What is the priority for the nurse when planning care for this patient?

A) Obtaining an order for a pulmonary function test (PFT)
B) Determining the potential of a possible adverse drug reaction
C) Reorienting the patient to time,place,and person frequently
D) Assessing for a family history of dementia