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Oxygen treatment increases the amount of oxygen that flows into your lungs and bloodstream. If your COPD is very bad and your blood oxygen levels are low, getting more oxygen can help you breathe better and live longer.
There are several ways to deliver the oxygen, including:
You don't have to stay at home or in a hospital to use oxygen. Oxygen systems are portable. You can use them while you do your daily tasks.
Long-term oxygen treatment may improve your quality of life. It can help you live longer when you have severe COPD and low oxygen levels. You may notice less shortness of breath and have more energy.
Long-term oxygen therapy is used for COPD if you have low levels of oxygen in your blood (hypoxia). It is used mostly to slow or prevent right-sided heart failure. It can help you live longer.
Oxygen may be given in a hospital if you have a rapid, sometimes sudden, increased shortness of breath (COPD exacerbation). Oxygen can also be used at home if the oxygen level in your blood is too low for long periods.
Long-term oxygen therapy should be used for at least 15 hours a day with as few interruptions as possible. Regular use can reduce the risk of death from low oxygen levels.1 To get the most benefit from oxygen, you use it 24 hours a day.
An arterial blood gas test should be done first to see if you need oxygen. You may need oxygen if:
Several studies show that using oxygen at home for more than 15 hours a day increases quality of life and helps people live longer when they have severe COPD and low blood levels of oxygen.1, 2 Oxygen therapy has good short-term and long-term effects in people who have COPD.3
Using oxygen may also improve confusion and memory problems. It may improve impaired kidney function caused by low oxygen levels.
Typically there are no risks from oxygen treatment as long as you follow your doctor's instructions. But oxygen is a fire hazard, so it is important to follow safety rules. Do not use oxygen around lit cigarettes, open flames, or anything flammable.
Oxygen is usually prescribed to raise the PaO2 to between 60 and 65 mm Hg or the saturations from 90% to 92%. Higher flow rates usually do not help, and they can even be dangerous.
People using oxygen should not smoke.
Do not use oxygen around lit cigarettes or an open flame. If you or those who care for you smoke, or if there are other risks for fire, it is important to consider oxygen treatment very carefully because of the danger of fire or explosion.
You may need oxygen in certain situations, including:
- McIvor RA, et al. (2011). COPD, search date April 2010. Online version of BMJ Clinical Evidence: http://www.clinical evidence.com.
- Global Initiative for Chronic Obstructive Lung Disease (2011). Global Strategy for the Diagnosis, Management, and Prevention of Chronic Obstructive Pulmonary Disease. Available online: http://www.goldcopd.org/uploads/users/files/GOLD_Report_2011_Feb21.pdf.
- Kim V, et al. (2008). Oxygen therapy in chronic obstructive pulmonary disease. Proceedings of the American Thoracic Society, 5(4): 513–518.
Last Revised: November 29, 2011
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