Causes of Cyanosis in the Newborn - Differential Diagnosis Algorithm Peripheral Only: • Poor Perfusion • Acrocyanosis Hemoglobinopathy: • Congenital • Acquired • Sulfhemoglobin Left-to-Right Shunt: • Patent Ductus Arteriosus • Ventricular Septal Defect • Atrioventricular Septal Defect • Truncus Arteriosus • Atrial Septal Defect • Total Anomalous Pulmonary Venous Return Right-to-Left Shunt: • Transposition of the Great Arteries • Tetralogy of Fallot • Obstructive/Hypoplastic Lesions • Aortic Atresia/Stenosis • Interruption of the Aortic Arch • Aortic Coarctation #Cyanosis #Newborn #Differential #Diagnosis #Algorithm #Causes #Peds #Pediatrics
