What PaO2 range corresponds to the SpO2 target of 94-98% after ROSC?

What PaO2 range corresponds to the SpO2 target of 94-98% after ROSC?

• A. 60-80 mmHg
• B. 70-90 mmHg
• C. 90-110 mmHg
• D. 80-100 mmHg

Answer: (D)

After ROSC, the goal is to maintain sufficient oxygenation without causing oxygen toxicity. The SpO2 target of 94-98% corresponds to a PaO2 that falls in a safe, practical range for most adults. In clinical practice, keeping PaO2 around 80-100 mmHg reliably supports SpO2 in the 94-98% window and minimizes the risk of both hypoxemia (PaO2 too low) and hyperoxia (PaO2 too high). Lower PaO2 values near 60-80 mmHg can push SpO2 toward the lower end of the target, while higher values above 100 mmHg increase the risk of oxygen-related injury. Therefore, 80-100 mmHg is the best match for maintaining the desired SpO2 after ROSC.

After ROSC, the goal is to maintain sufficient oxygenation without causing oxygen toxicity. The SpO2 target of 94-98% corresponds to a PaO2 that falls in a safe, practical range for most adults. In clinical practice, keeping PaO2 around 80-100 mmHg reliably supports SpO2 in the 94-98% window and minimizes the risk of both hypoxemia (PaO2 too low) and hyperoxia (PaO2 too high). Lower PaO2 values near 60-80 mmHg can push SpO2 toward the lower end of the target, while higher values above 100 mmHg increase the risk of oxygen-related injury. Therefore, 80-100 mmHg is the best match for maintaining the desired SpO2 after ROSC.