The decades-long practice of prescribing long-term oxygen for 24 hours a day to patients with severe hypoxemia from chronic ...

Hypoxemia may be mild, moderate, or severe, depending on your PaO2 levels. This is defined by the following ranges: Many factors can influence blood oxygen levels and cause hypoxemia, including ...

From the departments of Pediatrics and Medicine, University of Pennsylvania School of Medicine, and the Department of Physiology, Graduate Division of the University of Pennsylvania School of ...