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Doctor insights on: How Does Emphysema Reduce The Amount Of Oxygen Which Diffuses Into The Blood

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How does emphysema reduce the amount of oxygen which diffuses into the blood?

How does emphysema reduce the amount of oxygen which diffuses into the blood?

From Destruction: The destruction in the lung tissue from emphysema makes the oxygen harder to cross into the blood because there is less tissue surface left. With less air sacs to participate in gas exchange, it is harder for oxygen to cross into the blood. Does that make sense? That's why people should stop smoking. ...Read more

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Copd (Definition)

COPD may include chronic bronchitis, emphysema, or both. Chronic bronchitis is the production of increased mucus caused by inflammation. Bronchitis is considered chronic if you cough and produce excess mucus most days for three months in a year, two years in a row. Emphysema is a disease that damages the air sacs and/or the smallest breathing tubes in the lungs. ...Read more


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How can emphysema reduce the amount of oxygen that diffuses into the blood ?

How can emphysema reduce the amount of oxygen that diffuses into the blood ?

Destroys the lung: Emphysema causes destruction of lung tissue. The blood vessles in the lung get destroyed in the lung. These vessles carry the blood in the lung to pick up oxygen. If they are destroyed then, oxygen can not get into the blood vessles / blood and you get low oxygen. ...Read more

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At what level is low blood oxygen harmful for children with copd?

At what level is low blood oxygen harmful for children with copd?

See below: Children usually don't have copd, this is a disease of the adult. Children may have congenital lung diseases but the physiology of those is not the same as copd. Blood oxygen levels less than 90% are generally not desired. Hope this helps. ...Read more

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COPD breathlessness gets real bad. I do symbicourt, incruse and a nebulizer with no relief. Blood oxygen is in a he 90's. What more can I do or take. ?

COPD breathlessness gets real bad. I do symbicourt, incruse and a nebulizer with no relief. Blood oxygen is in a he 90's. What more can I do or take. ?

Discuss: This may be moderate to severe obstructive lung disease or an acute exacerbation if the underlying disease is more mild (maybe due to infection). See the treating physician for an urgent follow up as add-on therapy may be needed (or go to ER, follow your instinct). Overall, pulmonary rehabilitation training may have the most positive effect long-term. ...Read more

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My mom is being hospitalized for pneumonia and a possible blood clot or COPD i'm very worried could it be deadly her oxygen and blood pressure is low?

My mom is being hospitalized for pneumonia and a possible blood clot or COPD i'm very worried could it be deadly her oxygen and blood pressure is low?

Unanswerable: There are just too many unknowns here. I am very sorry to hear of your mother's troubles, but it sounds like she is in the right place and getting the right attention. In these scary scenarios this kind of answer must come from the medical team working with her in person. ...Read more

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Can I have very severe emphysema and need no oxygen?

Can I have very severe emphysema and need no oxygen?

Is possible: It is possible that one can have severe emphysema and not need oxygen. Can have oxygen levels checked with walking as well as at rest to assess need for oxygen. ...Read more

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Is it true that people with emphysema shouldn't breathe 100% oxygen?

Is it true that people with emphysema shouldn't breathe 100% oxygen?

Yes and No: Patients with emphysema are at some risk for developing high carbon dioxide levels (hypercapnea) if given high doses of oxygen. The oxygen will displace the carbon dioxide off of the red blood cell resulting in higher blood levels (haldane effect). However, hypoxia (low oxygen) is more likely to kill a patient than hypercapnea (high co2) so using high dose oxygen may be needed. ...Read more

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Why is it so dangerous to give large amounts of oxygen to a patient with emphysema?

Why is it so dangerous to give large amounts of oxygen to a patient with emphysema?

Not usually: In the late stages of emphysema or copd, patients do not respond normally to stimuli that make normal patients breathe. They only keep breathing in response to low oxygen in their bloodstreams. If they are given too much oxygen, their systems think that they don't need to breathe and they can actually breathe less or stop breathing. This is a rare problem. Oxygen helps most emphysema patients. ...Read more

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Could you exercise on oxygen if you have emphysema and your o2 sat dip to low 90's?

Yes: As long as your o2 sats stay at 90% or above, your cells will get plenty of oxygen, and you can exercise safely on oxygen. There is very little increased benefit with o2 sats greater than 90%. The key is to stay above 90%. ...Read more

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Dr. Sue Ferranti
491 doctors shared insights

Emphysema (Definition)

Emphysema is a lung disease caused by destruction of lung tissue--specifically the alveoli, which are the smallest sac-like units of the lung responsible for oxygen exchange. It is characterized by shortness of breath, an expanded chest, and possible signs of low oxygen in the body such as bluish ...Read more


Dr. Scott Bolhack
3,074 doctors shared insights

Oxygen (Definition)

Oxygen is a gas that the cells in your body need to work properly. The air we breathe normally has 21% oxygen. A maximum of 100% oxygen can be given. Babies with heart or lung problems may need ...Read more