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The desired FiO2= 40%, total flow= 12 L/min Oxygen flow-meter setting= ___________L/min and Air flow-meter setting=...

The desired FiO2= 40%, total flow= 12 L/min

Oxygen flow-meter setting= ___________L/min and Air flow-meter setting= ______________L/min

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Answer #1

The desired FiO2= 40%, total flow= 12 L/min

Air contains 20% of oxygen.

To achieve 40% Fio2(Fraction of inspired oxygen) we need to flow 80% of air(which contains 20% oxygen) and 20% of pure oxygen.

The total flow is 12 litter

So, 80% of 12 litter is 9.6 litter and 20 % is 2.4 litter

Answer -

Oxygen flow-meter setting= 2.4 L/min

Air flow-meter setting= 9.6 L/min

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