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. A nurse is assigned to care for a patient with chronic obstructive pulmonary disease (COPD) who is
experiencing an acute exacerbation. The nurse reviews the patient's care plan and notes that the
patient has a goal of maintaining oxygen saturation above 90%. Which of the following interventions
should the nurse prioritize to achieve this goal?
a) Administer bronchodilators as prescribed
b) Encourage pursed-lip breathing and diaphragmatic breathing
c) Monitor vital signs and oxygen saturation frequently
d) Provide supplemental oxygen as ordered
*Answer: D. Provide supplemental oxygen as ordered*
Rationale: Providing supplemental oxygen as ordered is the most effective intervention to maintain oxygen
saturation above 90% in a patient with COPD who is experiencing an acute exacerbation. Oxygen
therapy can reduce hypoxemia, dyspnea, and work of breathing, and improve gas exchange and tissue
oxygenation. The other interventions are also important, but they are not as urgent as oxygen therapy.
2. A nurse is caring for a patient with heart failure who has been prescribed furosemide, a loop diuretic.
The nurse knows that this medication can cause hypokalemia, which can increase the risk of cardiac
arrhythmias. Which of the following actions should the nurse take to prevent this complication?
a) Monitor serum potassium levels regularly
b) Teach the patient to eat foods rich in potassium
c) Administer potassium supplements as prescribed
d) All of the above
*Answer: D. All of the above*
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