A patient with severe hypoxaemia is breathing spontaneously and requires a high concentration of oxygen while awaiting further treatment. Which device is most appropriate?
Correct answer: C. Non-rebreather mask
- A. Nasal cannula
- B. Simple face mask
- C. Non-rebreather mask
- D. Venturi mask
Explanation
A non-rebreather mask can deliver a high oxygen concentration when the reservoir bag remains partially inflated during inspiration. A nasal cannula and simple mask provide lower concentrations, while a Venturi mask is selected for precise controlled concentration.
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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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