Which SpO2 targets are typical for non-COPD versus COPD patients?

• A. Non-COPD: 96-100%; COPD: 92-96%
• B. Non-COPD: 94-98%; COPD: 88-92%
• C. Non-COPD: 90-95%; COPD: 92-96%
• D. Non-COPD: 88-92%; COPD: 94-98%

Answer: (B)

Oxygen saturation targets depend on how COPD affects breathing. In COPD, the lungs are accustomed to lower oxygen levels and CO2 may build up if you give too much oxygen. Providing high oxygen levels can blunt the drive to breathe and worsen hypercapnia, and it can also worsen ventilation–perfusion mismatch. To balance keeping oxygen delivery adequate while avoiding CO2 retention, the target is typically 88–92%.

In patients without COPD, the risk of CO2 retention from higher oxygen is much less, so aiming for slightly higher saturations ensures tissues stay well-oxygenated without the same concerns about breathing drive. A common, safe target is about 94–98%.

Thus, the best match is non-COPD: 94–98% and COPD: 88–92%.