A member asked:

Why doctors put oxygen mask on patient's nose when he already breathes from atmosphere?

A doctor has provided 1 answer

Increase Oxygen: The purpose is to increase the oxygen content in your blood. If your lungs don't adequately absorb it at normal levels in the atmosphere supplemental oxygen can be beneficial.

Answered 4/27/2013

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Need doctor's help! will nasal oxygen cannulas irritate your nose?

A doctor has provided 1 answer