5 doctors weighed in:
Copd ---- what's considered a high concentration of required oxygen?
5 doctors weighed in

Dr. Michelle Zetoony
Internal Medicine - Sleep Medicine
4 doctors agree
In brief: Delivery
Perspective is that 21% is the concentration from the air we breath.
2-3% increase in concentration is from each liter of oxygen added. So 1 liter is about 24% and this can go through a nasal canula tube. Over 4-5 liters, you cannot get this from a canula and need continuous flow to maintain the concentration. This would be considered "high" in my book. Not sure if this answers your question.

In brief: Delivery
Perspective is that 21% is the concentration from the air we breath.
2-3% increase in concentration is from each liter of oxygen added. So 1 liter is about 24% and this can go through a nasal canula tube. Over 4-5 liters, you cannot get this from a canula and need continuous flow to maintain the concentration. This would be considered "high" in my book. Not sure if this answers your question.
Dr. Michelle Zetoony
Dr. Michelle Zetoony
Thank
Dr. Gutti Rao
Internal Medicine - Hospital-based practice
1 doctor agrees
In brief: Copd
Generally COPD patients require only about 2-3 liters of oxygen.
More concentrated oxygen will have a detrimental effect. It increases what is called partial pressure of co2. If the levels go beyond 40 then the patient may become lethargic, becomes short of breath.

In brief: Copd
Generally COPD patients require only about 2-3 liters of oxygen.
More concentrated oxygen will have a detrimental effect. It increases what is called partial pressure of co2. If the levels go beyond 40 then the patient may become lethargic, becomes short of breath.
Dr. Gutti Rao
Dr. Gutti Rao
Thank
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