Figure 2.

Positive pressure ventilation and peripheral oxygen saturation (SpO₂) %. Patients were recorded on their initial SpO₂% and lowest SpO₂% during intubation. Each patient’s oxygen saturation level was raised before intubation to the respective blue lines before undergoing intubation with nasal cannula use. Red lines represent lowest SpO₂ levels reached during intubation with nasal cannula usage. Vourc’h et al., 2015 reported a mean pre-oxygenation and median apneic oxygenation SpO₂%, respectively.