A client admitted with smoke inhalation injuries develops signs and symptoms of acute respiratory distress syndrome (ARDS). The nurse anticipates the healthcare provider will prescribe which course of action with regard to oxygen therapy?
A) Oxygen via a nasal cannula
B) Mechanical ventilation
C) Oxygen via a facial mask
D) Oxygen via a venturi mask
Answer: B
With ARDS, it is rarely possible to maintain adequate tissue oxygenation with oxygen therapy alone. With mechanical ventilation, the FiO2 (fraction of inspired oxygen-the percentage of oxygen administered) is set at the lowest possible level to maintain a PaO2 higher than 60 mmHg and oxygen saturation of approximately 90%. It is important to remember that mechanical ventilation does not cure ARDS; it simply supports respiratory function while the underlying problem is identified and treated.
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