FIGURE 3.

Arterial hemoglobin oxygen saturation (${\text{Sa}}_{{\mathrm{O}}_2}$) and arterial partial pressure of oxygen (${\text{Pa}}_{{\mathrm{O}}_2}$) after 5 min of gas exposure measured by arterial blood gas analysis. Note that both 3% and 5% CO₂‐enriched gas groups demonstrate significantly higher ${\text{Sa}}_{{\mathrm{O}}_2}$ and ${\text{Pa}}_{{\mathrm{O}}_2}$ compared to purely hypoxic conditions