Heliox Improves Carbon Dioxide Removal during Lung Protective Mechanical Ventilation

Figure 2

Gas exchange during ventilation with heliox for 3 hours ( to ). Measurements started just prior to heliox administration () until 3 hours after heliox discontinuation ( to ). Data are means SEM. (a) PaCO₂ (kPa); (b) end tidal CO₂ measurements (kPa); (c) pH measured hourly; and (d) PaO₂/Fi O₂ ratio (mmHg). : ; : ; : .

(a)

(b)

(c)

(d)