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Doctor insights on: Oxygen Debt

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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


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How is oxygen administered?

How is oxygen administered?

O2: Oxygen is administered either thro nasal cannula, face mask, thro an endotracheal or a tracheostomy tubes. Also you can administer different volumes of oxygen. ...Read more

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Can you die from to much oxygen?

Oxygen Toxicity: Normal room air is 21% oxygen. That will not hurt you. Diving with 100% oxygen can cause some respiratory problems. Prematures on extra oxygen can develop serious eye problems. Hyperbaric oxygen, for a long time (maybe 12 hrs or more) can hurt you. Most of these situations will not kill you. Also severe fires are accelerated by excess oxygen, so smoking on oxygen has killed people. ...Read more

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Why is too much oxygen dangerous?

Oxygen toxicity: Hyperoxia likely exists whenever oxygen tension exceeds 21% of atmospheric pressure. It appears to produce cellular injury through increased production of reactive oxygen species, such as hydrogen peroxide, superoxide anion, and hydroxyl radical. Oxygen toxicity refers most commonly to resulting tracheobronchial injury and damage to the tissue of the lungs. ...Read more

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Is 2 liter a low dosage on oxygen ?

Is 2 liter a low dosage on oxygen ?

2liter a volume, not: a dosage. Dosage=a quantity per unit time. 2 Liters/min oxygen flow by nasal cannula is a commonly used adjunctive oxygen flow for people with lung ventilation/perfusion problems: https://en.wikipedia.org/wiki/Ventilation/perfusion_ratio. What counts is oxygen saturation of hemoglobin as percentage, not dosage. Too much oxygen, esp. over days/weeks, is also toxic; yet uncommon without intubation. ...Read more