An Older Adult Client Being Treated for Chronic Obstructive Pulmonary

An older adult client being treated for chronic obstructive pulmonary disease ( COPD ) is exhibiting signs of memory loss and confusion.In planning his care, the nurse should give priority to:

A) obtaining an order for a pulmonary function test.
B) determining the potential of a possible adverse drug reaction.
C) reorienting the client to time, place, and person frequently.
D) assessing for a family history of dementia.