A patient's PaO2 level is 48 mm Hg. The nurse realizes this patient is experiencing which of the following?
1. hypoxemia
2. hypoxia
3. dysoxia
4. hyperventilation
1
Rationale: Hypoxemia, an inadequate amount of oxygen in the blood, is frequently quantified as a PaO2 of less than 50 mm Hg. If allowed to progress, hypoxemia can result in hypoxia which is defined as an inadequate amount of oxygen available at the cellular level such that cells experience anaerobic metabolism. Dysoxia is a condition characterized by an inability of the cells to use oxygen properly despite adequate levels of oxygen delivery. There is not enough information to determine if the patient is hyperventilating.
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