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People with COPD who need and use continuous oxygen therapy 24 hours a day tend to have a longer lifespan than those who use it only while awake (15 hours per day). In turn, individuals who use oxygen therapy 15 hours per day do better than those who use it only while they are sleeping. Publication Review By: Peter B. Terry, M.D., M.A. Published: 08 Aug 2011
Arterial oxygen partial pressure (P a O 2). 11 -13 kPa or 75 -100 mmHg. A low PaO 2 indicates that the patient is not oxygenating properly, and is hypoxemic. (Note that a low PaO 2 is not required for the patient to have hypoxia .) At a P a O 2 of less than 60 mm Hg, supplemental oxygen should be administered.ecent studies suggest that the Î±-stat method is superior. 1  pH-stat: The pH and other ABG results are measured at the patient's actual temperature. 2  The goal is to maintain a pH of 7.40 and the arterial carbon dioxide tension (paCO 2) at 5.3 kPa (40 mmHg) at the actual patient temperature.