Non-Cardiac Hypoxemia Diseases.

PO1, first pulse oximetry reading; PO2, second pulse oximetry reading; SpO2, oxygen saturation; PFO, patent foramen ovale; PDA, patent ductus arteriosus; CXR, chest x-ray; VSD, ventricular septal defect; PPHN, persistent pulmonary hypertension of newborn; TTN, transient tacypnoea of newborn; VACTERL, vertebral anomalies, anal atresia, cardia defects, tracheoesophageal fistula and or esophageal atresia, renal and radial anomalies, and limb defectsNon-Cardiac Hypoxemia Diseases.