A Patient with Chronic Obstructive Lung Disease Tells the Nurse

A patient with chronic obstructive lung disease tells the nurse that he does not always wear the prescribed oxygen at home because it is cumbersome and he is rarely short of breath. Which of the following is the nurse's best response to this patient?

A) "Wearing the oxygen will help keep your blood oxygen saturation levels up so your heart does not have to work at hard and will not become enlarged."
B) "You really should wear it at least while sleeping."
C) "It seems like you are doing fine without it."
D) "Keep the oxygen at home and if you become short of breath, you know to put it on until you are able to breath normally again."