Can you fly if you have lung problems?

Sea-level flights for patients with severe lung problems In certain cases, a simple change in oxygen level might be fatal for patients. For these patients, flying commercially might seem impossible. However, sea-level flights make traveling possible and safe, even for patients who have severe lung issues.



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Most people with a lung condition can travel safely on planes, but you should talk to your doctor before you make any plans. You may need a fitness-to-fly (hypoxic challenge) test to confirm whether you need in-flight oxygen.

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The air is 'thinner' because the pressure is less and, as a result, there is less oxygen. In fact, the concentration of oxygen falls from 21% at sea level, to about 15%. Most people will tolerate this, but, if you already have problems breathing, this will become worse.

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if you suffer from or have had:
  • angina or chest pain at rest.
  • an infectious disease (e.g. chickenpox, flu), including COVID-19.
  • decompression sickness after diving (sometimes called 'the bends')
  • increased pressure in the brain (due to bleeding, injury or infection)
  • infection of your ears or sinuses.
  • recent heart attack.


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Generally, you should also bag a trip if you have a fever higher than 100 degrees Fahrenheit and symptoms such as coughing or sneezing, says William Schaffner, M.D., a professor of infectious diseases at the Vanderbilt University Medical Center.

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suggest that flying may cause a small pneumothorax to develop, which is then aggravated by further air pressure changes, most commonly the return flight. Thus, they recommend that patients are assessed for pneumothorax before making the return flight, although realistically this may not always be possible.

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For most passengers, even those with respiratory disease, air travel is safe and comfortable. Some patients with COPD may be at risk but, with screening, these patients can be identified and most can travel safely with supplemental oxygen.

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Choose a seat in the middle of the plane. As the air circulates across the rows and not up and down the plane, some experts believe the worst air is in the front or the back of the plane. Stay well hydrated by drinking lots of fluids (water or fruit juice) and avoiding caffeine and alcohol, which will dehydrate you.

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Resting Pulse Oximetry
Values >95% on room air suggest that inflight hypoxemia is unlikely and that further evaluation is likely not necessary. Patients with saturations <92% on room air at rest should receive supplemental oxygen inflight, because they are at high risk of hypoxemia at altitude.

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Pneumothorax and scheduled flights This significant difference from the air pressure at ground level can cause expansion of the air trapped in the patient's pleural space and a worsening of existing pneumothorax. Therefore, if you have an acute pneumothorax, taking a scheduled flight is normally not advisable.

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The unexpected death, illness, or injury of you and/or a traveling companion that deems you unfit to travel, by order of a licensed physician. The hospitalization or death of a non-traveling family member.

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Infectious Diseases
An airline can deny boarding of any passenger who looks unwell, especially if they suspect the passenger might be infectious (infect other passengers).

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Keep your coughs at minimum by either popping cough drops as needed or taking cough medicine before you take off. Decongestants are also a good idea for that runny nose. Little Kleenex packets are available at most airports and could save your nose as well.

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