Problem: Which statement about the interpretation of pulse oximetry readings is most accurate?
- Oxygen saturation must be interpreted in light of the patient's hematocrit.
- A patient with COPD who has a hemoglobin 0f 20 g/dL and a saturation of 89% most likely has adequate tissue oxygenation.
- A patient with an oxygen saturation of 98% and a hemoglobin of 10 g/dL most likely has adequate tissue oxygenation.
- An oxygen saturation >92% indicates adequate oxygenation.