1. A nurse is caring for a patient with chronic obstructive

pulmonary disease (COPD) who is experiencing an acute

exacerbation. The nurse notices that the patient's oxygen

saturation is 88% on room air. What is the most appropriate

action for the nurse to take?

a) Administer oxygen via nasal cannula at 2 L/min

b) Administer oxygen via non-rebreather mask at 15 L/min

c) Administer oxygen via simple face mask at 6 L/min

d) *Administer oxygen via venturi mask at 24%*

Rationale: The correct answer is d. A venturi mask delivers

a precise concentration of oxygen and is preferred for

patients with COPD who are at risk of carbon dioxide

retention. A nasal cannula, a non-rebreather mask, and a

simple face mask deliver variable concentrations of oxygen

and may cause oxygen toxicity or hypercapnia in patients

with COPD.

2. A nurse is conducting a health history interview with a

patient who has a history of hypertension, diabetes

mellitus, and hyperlipidemia. The nurse asks the patient

about his medication adherence and lifestyle modifications.

The patient states that he sometimes forgets to take his

medications and that he does not follow a specific diet or

exercise regimen. What is the best response by the nurse?

a) *"It is important to take your medications as prescribed

and to make some changes in your diet and physical

activity to prevent complications from your chronic

conditions."*

b) "You should not skip your medications or eat unhealthy