NCLEX Question of the Day
Physiological Adaptation QID 1184
A patient with COPD has an oxygen saturation of 89% on room air. Which of the following oxygen delivery devices is most appropriate to use?
Explanation
The most appropriate oxygen delivery device for a patient with COPD and an oxygen saturation of 89% is a nasal cannula at 2 L/min. In COPD patients, it is important to avoid giving too much supplemental oxygen, as this can lead to hypercapnia (elevated blood CO2 levels) due to the loss of hypoxic respiratory drive.
A nasal cannula at low flow rates (1-4 L/min) provides a controlled amount of oxygen while minimizing the risk of CO2 retention. The other choices (simple face mask, non-rebreather mask, Venturi mask) provide higher concentrations of oxygen and are not appropriate for this patient.
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