A patient receiving oxygen through a simple face mask has a flow rate of 3 L/min. Which action should the nurse take first?
Correct answer: A. Increase the flow to at least 5 L/min
- A. Increase the flow to at least 5 L/min
- B. Change the mask to a nasal cannula
- C. Remove the oxygen during meals
- D. Place the patient in a flat position
Explanation
A simple face mask generally requires at least 5 L/min to flush exhaled carbon dioxide from the mask. A flow of 3 L/min can allow carbon dioxide rebreathing, so the nurse should increase the flow promptly.
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About Oxygen Therapy and Airway Care
Airway care includes positioning, suctioning, coughing and deep-breathing exercises, incentive spirometry, oxygen delivery devices and humidification. Questions address indications, flow rates, safety precautions and monitoring for hypoxia or oxygen toxicity, while distinguishing nasal cannula, simple mask, non-rebreather mask and Venturi mask use.
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