A student nurse asks for an explanation of "refractory hypoxemia." What answer by the nurse instructor is best?
a. "It is chronic hypoxemia that accompanies restrictive airway disease."
b. "It is hypoxemia from lung damage due to mechanical ventilation."
c. "It is hypoxemia that continues even after the client is weaned from oxygen."
d. "It is hypoxemia that persists even with 100% oxygen administration."
ANS: D
Refractory hypoxemia is hypoxemia that persists even with the administration of 100% oxygen. It is a cardinal sign of acute respiratory distress syndrome. It does not accompany restrictive airway disease and is not caused by the use of mechanical ventilation or by being weaned from oxygen.
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