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Fig. 3 | Respiratory Research

Fig. 3

From: Use of high flow nasal cannula in patients with acute respiratory failure in general wards under intensivists supervision: a single center observational study

Fig. 3

Gas exchange, respiratory rate, dyspnea and comfort before and during the first 24 h of HFNC oxygen therapy (n = 123 patients with de-novo ARF). A pH. B Arterial partial pressure of CO2 (PaCO2). C Arterial partial pressure of oxygen to inspiratory oxygen fraction ratio (PaO2/FiO2). D Respiratory rate (RR). E Borg dyspnea scale. F Comfort scale

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