A patient using a Venturi mask becomes anxious and repeatedly removes the mask. The oxygen saturation falls from 95% to 88%. Which action should the nurse take first?
Correct answer: B. Reapply the prescribed mask and assess the patient
- A. Remove the mask and leave the patient on room air
- B. Reapply the prescribed mask and assess the patient
- C. Change the mask to a nasal cannula without an order
- D. Increase the oxygen flow above the marked setting
Explanation
Reapplying the prescribed device restores the ordered oxygen concentration, followed by assessment of breathing and oxygen saturation. Changing the device or flow without an order may provide an inaccurate oxygen concentration or delay treatment.
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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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