A patient with acute severe hypoxemia needs a high concentration of oxygen while awaiting medical review. Which oxygen device is most appropriate?
Correct answer: A. A non-rebreather mask
- A. A non-rebreather mask
- B. A nasal cannula at 2 L per minute
- C. A Venturi mask at 24 percent
- D. A simple face mask at 3 L per minute
Explanation
A non-rebreather mask can provide a high inspired oxygen concentration when its reservoir is inflated and the mask fits properly. A low-flow nasal cannula and a low-concentration Venturi setting are not sufficient for severe hypoxemia.
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About Respiratory Nursing
Covers nursing assessment and management of asthma, chronic obstructive pulmonary disease, pneumonia, tuberculosis, pleural disorders and respiratory failure. Key areas include breath sounds, oxygen therapy, airway suctioning, inhaled medicines, arterial blood gases and the difference between hypoxia, hypoxemia and carbon dioxide retention.
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