Pulmonary Rehabilitation

Frequently Asked Questions

  Can I get addicted to oxygen?

Oxygen is not addicting. When your lungs are unable to supply adequate oxygen, supplemental oxygen may be required. Your need for supplemental oxygen may vary through the day and may also depend upon your activity level. When you are active (walking, showering, dressing, working), your body requires more energy (oxygen). By depriving your body of adequate oxygen you run the risk of putting undue stress on your heart and potentially developing heart failure.

  How do I know if I need oxygen?

Your doctor will assess your need for supplemental oxygen using two methods:

Arterial Blood Gases (ABGs)
This test is considered the "gold standard". A sample of arterial blood is taken usually from your arm and tested for direct levels of oxygen. A level of 80-100 mm Hg is considered the normal range. Patients with COPD may tolerate lower levels of oxygen.

Pulse Oximetry
This is a non-invasive test which indirectly measures the level of oxygen in the blood. A probe is placed usually on your finger (ear, nose, and forehead probes may also be used) to measure oxygen levels. 90-100% is considered normal.A complete assessment of oxygen requirement should include these measurements both at rest and with exercise or activity

  How much oxygen should I be using?

Your doctor will prescribe the appropriate amount of oxygen for you to use based upon the results of your ABG and pulse oximetry tests. You may require a higher dose when exercising or performing difficult activities than when you are at rest or sleeping. Typically a prescription will be between 1-6 l/m of oxygen by flow meter.

  If I feel short of breath, does that mean I need oxygen?

No. Just because you feel short of breath it does not necessarily mean that your body is lacking adequate oxygen. Only by testing your blood oxygen level (ABGs or pulse oximetry) will you know if you need oxygen and how much. Shortness of breath is part of lung disease. Often a regular program of exercise and conditioning combined with optimal medical management (medications and oxygen) may help to decrease the symptoms of shortness of breath.

  If I use oxygen will I be confined to my home?

There are many types of portable oxygen systems including several light weight portable units. Consult your doctor or local medical supplier for more information. See links.