Oxygen Therapy Part 1 — History, Physiology, and Evaluation

History, Physiology, and Evaluation of Oxygen TherapyOxygen is standard therapy for acute cardiopulmonary diseases, and long-term oxygen therapy is common in the outpatient setting. In part I of a two-part review, Wemple and colleagues discuss the physiology of tissue hypoxia, mechanisms of hypoxemia, and its clinical assessment.