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IMPORTANT - There is NO one-setting fits all regarding O2 delivery! Each patient must be assessed AND critical pieces of history known-- or you could kill the patient.

GENERALLY SPEAKING - An adult with NO history of lung disease can typically receive 8 L (8 liters) per minute.


HOWEVER, if COPD especially emphysema or end-stage lung diseases, the oxygen MUST be set LOW at about 2-3 L (2-3 liters) per minute because the brain is used to high CO2 levels. You could shut off the person's natural reflex to breathe if you flood the lungs with 02. Remember, no matter how much O2 you push in, the person's lungs lack the surfaces of the alveoli for CO2-O2 exchange.

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