Fig. 1
From: Pre-flight evaluation of adult patients with cystic fibrosis: a cross-sectional study

Relationships between arterial oxygen partial pressure (PaO2) during Hypoxia Altitude Simulation Test (HAST) and forced expiratory volume in one second (FEV1) (a), pulse oximetry (SpO2) (b), PaO2 (c) and SaO2 at rest (d)