Figure 3From: High-flow nasal cannula oxygen versus non-invasive ventilation in patients with acute hypoxaemic respiratory failure undergoing flexible bronchoscopy - a prospective randomised trialSpO 2 at baseline, pre and post bronchoscopy. Changes in SpO2. Values are given as mean and standard deviation. HFNC, high-flow nasal cannula; NIV, non-invasive ventilation; SpO2, oxygen saturation recorded by pulse oximetry.Back to article page